commit 9419eeda763a2a6d6db98b0cc12027b6e04699ae
Author: Eugen Höglinger <eugen.hoeglinger@engel.at>
Date:   Tue Apr 23 15:10:22 2024 +0200

    Initialize

diff --git a/.vs/Test_TabControlsAndDataGridViews.git/FileContentIndex/52dc4549-47f8-4883-a33a-1c7313a5d2f6.vsidx b/.vs/Test_TabControlsAndDataGridViews.git/FileContentIndex/52dc4549-47f8-4883-a33a-1c7313a5d2f6.vsidx
new file mode 100644
index 0000000..fca6a68
Binary files /dev/null and b/.vs/Test_TabControlsAndDataGridViews.git/FileContentIndex/52dc4549-47f8-4883-a33a-1c7313a5d2f6.vsidx differ
diff --git a/.vs/Test_TabControlsAndDataGridViews.git/v17/.suo b/.vs/Test_TabControlsAndDataGridViews.git/v17/.suo
new file mode 100644
index 0000000..a137193
Binary files /dev/null and b/.vs/Test_TabControlsAndDataGridViews.git/v17/.suo differ
diff --git a/.vs/Test_TabControlsAndDataGridViews.git/v17/DocumentLayout.json b/.vs/Test_TabControlsAndDataGridViews.git/v17/DocumentLayout.json
new file mode 100644
index 0000000..e75ec07
--- /dev/null
+++ b/.vs/Test_TabControlsAndDataGridViews.git/v17/DocumentLayout.json
@@ -0,0 +1,65 @@
+{
+  "Version": 1,
+  "WorkspaceRootPath": "C:\\CAD\\Git-WorkRepository\\VisualStudio\\_TEST\\Test_TabControlsAndDataGridViews.git\\",
+  "Documents": [
+    {
+      "AbsoluteMoniker": "D:0:0:{5780CB23-8ABE-4DCE-95FC-BC35F4ECC14B}|Test_TabControlsAndDataGridViews\\Test_TabControlsAndDataGridViews.csproj|C:\\CAD\\Git-WorkRepository\\VisualStudio\\_TEST\\Test_TabControlsAndDataGridViews.git\\test_tabcontrolsanddatagridviews\\form1.cs||{A6C744A8-0E4A-4FC6-886A-064283054674}|Form",
+      "RelativeMoniker": "D:0:0:{5780CB23-8ABE-4DCE-95FC-BC35F4ECC14B}|Test_TabControlsAndDataGridViews\\Test_TabControlsAndDataGridViews.csproj|solutionrelative:test_tabcontrolsanddatagridviews\\form1.cs||{A6C744A8-0E4A-4FC6-886A-064283054674}|Form"
+    },
+    {
+      "AbsoluteMoniker": "D:0:0:{5780CB23-8ABE-4DCE-95FC-BC35F4ECC14B}|Test_TabControlsAndDataGridViews\\Test_TabControlsAndDataGridViews.csproj|c:\\cad\\git-workrepository\\visualstudio\\_test\\test_tabcontrolsanddatagridviews.git\\test_tabcontrolsanddatagridviews\\form1.cs||{A6C744A8-0E4A-4FC6-886A-064283054674}",
+      "RelativeMoniker": "D:0:0:{5780CB23-8ABE-4DCE-95FC-BC35F4ECC14B}|Test_TabControlsAndDataGridViews\\Test_TabControlsAndDataGridViews.csproj|solutionrelative:test_tabcontrolsanddatagridviews\\form1.cs||{A6C744A8-0E4A-4FC6-886A-064283054674}"
+    }
+  ],
+  "DocumentGroupContainers": [
+    {
+      "Orientation": 0,
+      "VerticalTabListWidth": 256,
+      "DocumentGroups": [
+        {
+          "DockedWidth": 200,
+          "SelectedChildIndex": 4,
+          "Children": [
+            {
+              "$type": "Bookmark",
+              "Name": "ST:128:0:{1fc202d4-d401-403c-9834-5b218574bb67}"
+            },
+            {
+              "$type": "Bookmark",
+              "Name": "ST:129:0:{1fc202d4-d401-403c-9834-5b218574bb67}"
+            },
+            {
+              "$type": "Bookmark",
+              "Name": "ST:0:0:{e506b91c-c606-466a-90a9-123d1d1e12b3}"
+            },
+            {
+              "$type": "Document",
+              "DocumentIndex": 1,
+              "Title": "Form1.cs",
+              "DocumentMoniker": "C:\\CAD\\Git-WorkRepository\\VisualStudio\\_TEST\\Test_TabControlsAndDataGridViews.git\\Test_TabControlsAndDataGridViews\\Form1.cs",
+              "RelativeDocumentMoniker": "Test_TabControlsAndDataGridViews\\Form1.cs",
+              "ToolTip": "C:\\CAD\\Git-WorkRepository\\VisualStudio\\_TEST\\Test_TabControlsAndDataGridViews.git\\Test_TabControlsAndDataGridViews\\Form1.cs",
+              "RelativeToolTip": "Test_TabControlsAndDataGridViews\\Form1.cs",
+              "ViewState": "AQIAAAAAAAAAAAAAAAAAAIIAAABIAAAA",
+              "Icon": "ae27a6b0-e345-4288-96df-5eaf394ee369.000738|",
+              "WhenOpened": "2024-04-16T12:52:38.812Z",
+              "EditorCaption": ""
+            },
+            {
+              "$type": "Document",
+              "DocumentIndex": 0,
+              "Title": "Form1.cs [Entwurf]",
+              "DocumentMoniker": "C:\\CAD\\Git-WorkRepository\\VisualStudio\\_TEST\\Test_TabControlsAndDataGridViews.git\\Test_TabControlsAndDataGridViews\\Form1.cs",
+              "RelativeDocumentMoniker": "Test_TabControlsAndDataGridViews\\Form1.cs",
+              "ToolTip": "C:\\CAD\\Git-WorkRepository\\VisualStudio\\_TEST\\Test_TabControlsAndDataGridViews.git\\Test_TabControlsAndDataGridViews\\Form1.cs [Entwurf]",
+              "RelativeToolTip": "Test_TabControlsAndDataGridViews\\Form1.cs [Entwurf]",
+              "Icon": "ae27a6b0-e345-4288-96df-5eaf394ee369.000738|",
+              "WhenOpened": "2024-04-16T12:52:35.365Z",
+              "EditorCaption": " [Entwurf]"
+            }
+          ]
+        }
+      ]
+    }
+  ]
+}
\ No newline at end of file
diff --git a/Daten/CD 1/File 1.txt b/Daten/CD 1/File 1.txt
new file mode 100644
index 0000000..e69de29
diff --git a/Daten/CD 2/File 2.txt b/Daten/CD 2/File 2.txt
new file mode 100644
index 0000000..e69de29
diff --git a/Daten/CD 3/File 3.txt b/Daten/CD 3/File 3.txt
new file mode 100644
index 0000000..e69de29
diff --git a/Daten/CD 4/File 4.txt b/Daten/CD 4/File 4.txt
new file mode 100644
index 0000000..e69de29
diff --git a/Test_TabControlsAndDataGridViews.git.sln b/Test_TabControlsAndDataGridViews.git.sln
new file mode 100644
index 0000000..3c003c2
--- /dev/null
+++ b/Test_TabControlsAndDataGridViews.git.sln
@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.9.34723.18
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Test_TabControlsAndDataGridViews", "Test_TabControlsAndDataGridViews\Test_TabControlsAndDataGridViews.csproj", "{5780CB23-8ABE-4DCE-95FC-BC35F4ECC14B}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{5780CB23-8ABE-4DCE-95FC-BC35F4ECC14B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{5780CB23-8ABE-4DCE-95FC-BC35F4ECC14B}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{5780CB23-8ABE-4DCE-95FC-BC35F4ECC14B}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{5780CB23-8ABE-4DCE-95FC-BC35F4ECC14B}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {EE0AAE3B-24EC-4C45-B100-83F466A368BB}
+	EndGlobalSection
+EndGlobal
diff --git a/Test_TabControlsAndDataGridViews/App.config b/Test_TabControlsAndDataGridViews/App.config
new file mode 100644
index 0000000..56efbc7
--- /dev/null
+++ b/Test_TabControlsAndDataGridViews/App.config
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.2" />
+    </startup>
+</configuration>
\ No newline at end of file
diff --git a/Test_TabControlsAndDataGridViews/Form1.Designer.cs b/Test_TabControlsAndDataGridViews/Form1.Designer.cs
new file mode 100644
index 0000000..ab7f8f1
--- /dev/null
+++ b/Test_TabControlsAndDataGridViews/Form1.Designer.cs
@@ -0,0 +1,114 @@
+namespace Test_TabControlsAndDataGridViews
+{
+    partial class Form1
+    {
+        /// <summary>
+        /// Erforderliche Designervariable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Verwendete Ressourcen bereinigen.
+        /// </summary>
+        /// <param name="disposing">True, wenn verwaltete Ressourcen gelöscht werden sollen; andernfalls False.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Vom Windows Form-Designer generierter Code
+
+        /// <summary>
+        /// Erforderliche Methode für die Designerunterstützung.
+        /// Der Inhalt der Methode darf nicht mit dem Code-Editor geändert werden.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.buttonAddTab = new System.Windows.Forms.Button();
+            this.buttonRemoveTab = new System.Windows.Forms.Button();
+            this.buttonRemoveSelectedTab = new System.Windows.Forms.Button();
+            this.buttonMoveTabToLeft = new System.Windows.Forms.Button();
+            this.buttonMoveTabToRight = new System.Windows.Forms.Button();
+            this.SuspendLayout();
+            // 
+            // buttonAddTab
+            // 
+            this.buttonAddTab.Location = new System.Drawing.Point(13, 415);
+            this.buttonAddTab.Name = "buttonAddTab";
+            this.buttonAddTab.Size = new System.Drawing.Size(129, 23);
+            this.buttonAddTab.TabIndex = 0;
+            this.buttonAddTab.Text = "Add Tab";
+            this.buttonAddTab.UseVisualStyleBackColor = true;
+            this.buttonAddTab.Click += new System.EventHandler(this.buttonAddTab_Click);
+            // 
+            // buttonRemoveTab
+            // 
+            this.buttonRemoveTab.Location = new System.Drawing.Point(174, 415);
+            this.buttonRemoveTab.Name = "buttonRemoveTab";
+            this.buttonRemoveTab.Size = new System.Drawing.Size(129, 23);
+            this.buttonRemoveTab.TabIndex = 1;
+            this.buttonRemoveTab.Text = "Remove Tab";
+            this.buttonRemoveTab.UseVisualStyleBackColor = true;
+            this.buttonRemoveTab.Click += new System.EventHandler(this.buttonRemoveTab_Click);
+            // 
+            // buttonRemoveSelectedTab
+            // 
+            this.buttonRemoveSelectedTab.Location = new System.Drawing.Point(335, 415);
+            this.buttonRemoveSelectedTab.Name = "buttonRemoveSelectedTab";
+            this.buttonRemoveSelectedTab.Size = new System.Drawing.Size(129, 23);
+            this.buttonRemoveSelectedTab.TabIndex = 2;
+            this.buttonRemoveSelectedTab.Text = "Remove Selected Tab";
+            this.buttonRemoveSelectedTab.UseVisualStyleBackColor = true;
+            this.buttonRemoveSelectedTab.Click += new System.EventHandler(this.buttonRemoveSelectedTab_Click);
+            // 
+            // buttonMoveTabToLeft
+            // 
+            this.buttonMoveTabToLeft.Location = new System.Drawing.Point(496, 415);
+            this.buttonMoveTabToLeft.Name = "buttonMoveTabToLeft";
+            this.buttonMoveTabToLeft.Size = new System.Drawing.Size(129, 23);
+            this.buttonMoveTabToLeft.TabIndex = 3;
+            this.buttonMoveTabToLeft.Text = "Tab nach links";
+            this.buttonMoveTabToLeft.UseVisualStyleBackColor = true;
+            this.buttonMoveTabToLeft.Click += new System.EventHandler(this.buttonMoveTabToLeft_Click);
+            // 
+            // buttonMoveTabToRight
+            // 
+            this.buttonMoveTabToRight.Location = new System.Drawing.Point(657, 415);
+            this.buttonMoveTabToRight.Name = "buttonMoveTabToRight";
+            this.buttonMoveTabToRight.Size = new System.Drawing.Size(129, 23);
+            this.buttonMoveTabToRight.TabIndex = 4;
+            this.buttonMoveTabToRight.Text = "Tab nach rechts";
+            this.buttonMoveTabToRight.UseVisualStyleBackColor = true;
+            this.buttonMoveTabToRight.Click += new System.EventHandler(this.buttonMoveTabToRight_Click);
+            // 
+            // Form1
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(800, 450);
+            this.Controls.Add(this.buttonMoveTabToRight);
+            this.Controls.Add(this.buttonMoveTabToLeft);
+            this.Controls.Add(this.buttonRemoveSelectedTab);
+            this.Controls.Add(this.buttonRemoveTab);
+            this.Controls.Add(this.buttonAddTab);
+            this.Name = "Form1";
+            this.Text = "Form1";
+            this.Load += new System.EventHandler(this.Form1_Load);
+            this.ResumeLayout(false);
+
+        }
+
+        #endregion
+
+        private System.Windows.Forms.Button buttonAddTab;
+        private System.Windows.Forms.Button buttonRemoveTab;
+        private System.Windows.Forms.Button buttonRemoveSelectedTab;
+        private System.Windows.Forms.Button buttonMoveTabToLeft;
+        private System.Windows.Forms.Button buttonMoveTabToRight;
+    }
+}
+
diff --git a/Test_TabControlsAndDataGridViews/Form1.cs b/Test_TabControlsAndDataGridViews/Form1.cs
new file mode 100644
index 0000000..8a94096
--- /dev/null
+++ b/Test_TabControlsAndDataGridViews/Form1.cs
@@ -0,0 +1,418 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Drawing.Drawing2D;
+using System.IO;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+using static System.Net.WebRequestMethods;
+using static System.Windows.Forms.VisualStyles.VisualStyleElement;
+using static System.Windows.Forms.VisualStyles.VisualStyleElement.ProgressBar;
+
+namespace Test_TabControlsAndDataGridViews
+{
+    public partial class Form1 : Form
+    {
+        #region Version und Copyright
+        // Version und Copyright
+        string programName = Path.GetFileNameWithoutExtension(System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase); //Den Programmnamen auslesen
+        string programVersion = System.Reflection.Assembly.GetExecutingAssembly().GetName().Version.ToString();
+        static object[] attributes = Assembly.GetExecutingAssembly().GetCustomAttributes(typeof(AssemblyCopyrightAttribute), false);
+        string copyright = GenerateCopyright();
+        string icon = Application.StartupPath + "\\Info.bmp";
+
+        //Assembly Datum und Zeit
+        static DateTime value = AssemblyDateTime();
+        string date = value.ToShortDateString();
+        string time = value.ToLongTimeString();
+
+        private static DateTime AssemblyDateTime()
+        {
+            var version = System.Reflection.Assembly.GetExecutingAssembly().GetName().Version;
+            var buildDateTime = new DateTime(2000, 1, 1).Add(new TimeSpan(TimeSpan.TicksPerDay * version.Build + TimeSpan.TicksPerSecond * 2 * version.Revision));
+            //Tage seit dem 1. Januar 2000 und Sekunden seit Mitternacht, (multiplizier mit 2 ergibt das Original)
+            return buildDateTime;
+        }
+
+        private static string CurrentYear()
+        {
+            DateTime dtn = DateTime.Now;
+            return dtn.Year.ToString();
+        }
+
+        private static string StartYear()
+        {
+            string startYear = "";
+            if (((AssemblyCopyrightAttribute)attributes[0]).Copyright.Contains("Copyright © "))
+            {
+                startYear = ((AssemblyCopyrightAttribute)attributes[0]).Copyright.Replace("Copyright © ", "");
+                while (startYear.StartsWith(" "))
+                {
+                    startYear = startYear.Remove(0, 1);
+                }
+
+                if (startYear.Contains("-"))
+                {
+                    startYear = startYear.Remove(startYear.IndexOf("-"));
+                }
+                else
+                {
+                    startYear = startYear.Remove(startYear.IndexOf(" "));
+                }
+                return startYear;
+            }
+            else
+            {
+                DateTime dtn = DateTime.Now;
+                return dtn.Year.ToString();
+            }
+        }
+
+        private static string GenerateCopyright()
+        {
+            string startYear = StartYear();
+            string currentYear = CurrentYear();
+
+            if (startYear == currentYear)
+            {
+                return ((AssemblyCopyrightAttribute)attributes[0]).Copyright;
+            }
+            else
+            {
+                string temp = ((AssemblyCopyrightAttribute)attributes[0]).Copyright;
+                string start = temp.Remove(temp.IndexOf(startYear) - 1);
+                string end = (temp.Remove(0, temp.IndexOf(" by")));
+
+                return String.Concat(start, " ", startYear, "-", currentYear, end);
+            }
+        }
+        #endregion
+
+        #region Programm-Info
+        /// <summary>
+        /// Contains the name of the program file
+        /// </summary>
+        public static string ProgramName { set; get; }
+
+        /// <summary>
+        /// Contains the version of the program file
+        /// </summary>
+        public static string ProgramVersion { set; get; }
+
+        /// <summary>
+        /// Contains the copyright notice
+        /// </summary>
+        public static string Copyright { set; get; }
+
+        private void SetProgramInfo()
+        {
+            //Name, Version und Copyright setzen
+            ProgramName = programName;
+            ProgramVersion = programVersion;
+            Copyright = copyright;
+        }
+        #endregion
+        public Form1()
+        {
+            SetProgramInfo();
+            InitializeComponent();
+        }
+
+        private void Form1_Load(object sender, EventArgs e)
+        {
+            CreatingTabControl();
+        }
+
+        TabControl DynamicTabControl { set; get; } // Current TabControl
+        List<string[]> DataGridViewValues { get; set; }
+        List<string[]> PreviousDataGridViewValues { get; set; }
+        List<string[]> NextDataGridViewValues { get; set; }
+
+        int maxNumbersOfTabPages = 12;
+
+        private void CreatingTabControl()
+        {
+            // Create a TabControl and set its properties
+            TabControl dynamicTabControl = new TabControl();
+            dynamicTabControl.Name = "DynamicTabControl";
+            //dynamicTabControl.BackColor = Color.White;
+            //dynamicTabControl.ForeColor = Color.Black;
+            //dynamicTabControl.Font = new Font("Arial", 10);
+            dynamicTabControl.Width = 700;
+            dynamicTabControl.Height = 400;
+            Controls.Add(dynamicTabControl); // Add TabControl to Form
+
+            // Add TabPage with DataGridView to TabControl
+            AddTabPageWithDataGridView(dynamicTabControl);
+
+            // Speichert das aktuelle TabControl
+            DynamicTabControl = dynamicTabControl;
+        }
+
+        private void AddTabPage(TabControl dynamicTabControl, int count)
+        {
+            TabPage tabPage = new TabPage();
+            tabPage.Name = "tabPage" + count.ToString();
+            tabPage.Text = "Tab " + count.ToString();
+            dynamicTabControl.TabPages.Add(tabPage);
+        }
+
+        private void AddDataGridViewTable(TabControl dynamicTabControl, int number)
+        {
+            DataGridView dataGridView = new DataGridView();
+
+            this.Controls.Add(dataGridView);
+
+            dataGridView.ColumnCount = 2;
+            dataGridView.Name = "dataGridView" + number.ToString();
+            dataGridView.Columns[0].Name = "Number";
+            dataGridView.Columns[1].Name = "Title";
+            dataGridView.Columns[0].Width = 50;
+            dataGridView.Columns[1].Width = 599;
+            dataGridView.ScrollBars = ScrollBars.Both;
+            dataGridView.Dock = DockStyle.Fill;
+            dataGridView.Rows.Add();
+
+            dataGridView.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
+            dataGridView.MultiSelect = false;
+
+            dynamicTabControl.TabPages[number].Controls.Add(dataGridView);
+        }
+
+        private void AddTabPageWithDataGridView(TabControl dynamicTabControl)
+        {
+            int numberOfTabs = dynamicTabControl.TabCount;
+
+            if (numberOfTabs < maxNumbersOfTabPages)
+            {
+                AddTabPage(dynamicTabControl, numberOfTabs); // Add TabPage to TabControl
+                AddDataGridViewTable(dynamicTabControl, numberOfTabs); // Add a separate DataGridView for each TabPage
+            }
+        }
+
+        private void RemoveTabPage(TabControl dynamicTabControl)
+        {
+            // Removes the last 'TabControl'
+
+            // There must be at least 2 'TabControl', so that one can be removed
+            if (dynamicTabControl.TabCount > 1)
+            {
+                TabPage tab = dynamicTabControl.TabPages[dynamicTabControl.TabCount - 1];
+
+                // There must be at least 2 'TabControl', so that one can be removed
+                if (dynamicTabControl.TabCount > 1)
+                {
+                    // As long as the 'TabControl' (DataGridView) contains data, it cannot be deleted
+                    if (IsDataGridViewEmpty(tab.Controls.OfType<DataGridView>().FirstOrDefault()))
+                    {
+                        dynamicTabControl.TabPages.Remove(tab);
+                    }
+                    else
+                    {
+                        MessageBox.Show("Löschen nicht möglich!\n\r\n\rTab kann nicht gelöscht werden,\n\rweil die Tabelle noch Daten enthälten!\n\r");
+                    }
+                }
+            }
+        }
+
+        private void RemoveSelectedTabPage(TabControl dynamicTabControl)
+        {
+            // Removes the selected 'TabControl'
+
+            // There must be at least 2 'TabControl', so that one can be removed
+            if (dynamicTabControl.TabCount > 1)
+            {
+                // As long as the 'TabControl' (DataGridView) contains data, it cannot be deleted
+                if (IsDataGridViewEmpty(dynamicTabControl.SelectedTab.Controls.OfType<DataGridView>().FirstOrDefault()))
+                {
+                    dynamicTabControl.TabPages.Remove(dynamicTabControl.SelectedTab);
+                }
+                else
+                {
+                    MessageBox.Show("Löschen nicht möglich!\n\r\n\rTab kann nicht gelöscht werden,\n\rweil die Tabelle noch Daten enthälten!\n\r");
+                }
+
+                RenameTabs(dynamicTabControl); // Rename all 'TabControl' so that they are numbered consecutively again
+            }
+        }
+
+        private void RenameTabs(TabControl dynamicTabControl)
+        {
+            // Rename all 'TabControl' so that they are numbered consecutively again
+            for (int i = 0; i < dynamicTabControl.TabCount; i++)
+            {
+                dynamicTabControl.TabPages[i].Name = "tabPage" + i.ToString(); 
+                dynamicTabControl.TabPages[i].Text = "Tab " + i.ToString();
+            }
+        }
+
+        private bool IsDataGridViewEmpty(DataGridView dataGridView)
+        {
+            bool isEmpty = true;
+
+            if (dataGridView.Rows.Count == 0)
+            {
+                isEmpty = true; //Wenn es keine Zeilen gibt, dann ist die Tabelle leer
+            }
+            else
+            {
+                //Wenn es Zeilen gibt ...
+                for (int i = 0; i < dataGridView.Rows.Count; i++)
+                {
+                    for (int j = 0; j < dataGridView.Columns.Count; j++)
+                    {
+                        if (dataGridView[j, i].Value != null)
+                        {
+                            isEmpty = false; //... und die Zelle nicht leer ist, dann ist die Tabelle nicht leer
+                        }
+                    }
+                }
+            }
+
+            return isEmpty;
+        }
+
+        private void MoveTabToLeft(TabControl dynamicTabControl, DataGridView dataGridView)
+        {
+            // Moves the selected 'TabPage' to the left and renumber/rename the others
+
+            int index = dynamicTabControl.SelectedIndex; // The index of the selected 'TabPage'
+
+            // If there is more than one 'TabPage', then move to the left
+            if (index > 0)
+            {
+                DataGridViewValues = DetermineDataGridViewValues(dynamicTabControl, dataGridView); // Write all values from the selected dataGridView to a list
+
+                TabControl PreviousTabControl = DeterminePreviousControl(DynamicTabControl); // Change the control to the previous 'TabPage'
+
+                DataGridView previousDataGridView = PreviousTabControl.SelectedTab.Controls.OfType<DataGridView>().FirstOrDefault(); // Chang the control to the previous dataGridView
+                PreviousDataGridViewValues = DetermineDataGridViewValues(PreviousTabControl, previousDataGridView); // Write all values from the previous dataGridView to a list
+
+                WriteDataGridView(previousDataGridView, DataGridViewValues); // Write the data from the selected dataGridView back to the previous dataGridView
+                
+                dynamicTabControl.SelectedIndex = index; //Set the selected 'TabPage' as current 'TabPage'
+                WriteDataGridView(dataGridView, PreviousDataGridViewValues); // Write the data from the previous dataGridView back to the selected dataGridView
+
+                PreviousTabControl = DeterminePreviousControl(DynamicTabControl); // Change the control to the previous 'TabPage'
+            }
+
+            //TODO: Rename folders
+        }
+
+        private void MoveTabToRight(TabControl dynamicTabControl, DataGridView dataGridView)
+        {
+            // Moves the selected 'TabPage' to the right and renumber/rename the others
+
+            int index = dynamicTabControl.SelectedIndex; // The index of the selected 'TabPage'
+
+            // If the selected tab is not the last tab, then move it to the right
+            if (index < dynamicTabControl.TabCount)
+            {
+                // TODO: If the selected tab is not the last tab, then move it to the right
+                DataGridViewValues = DetermineDataGridViewValues(dynamicTabControl, dataGridView); // Write all values from the selected dataGridView to a list
+
+                TabControl NextTabControl = DetermineNextControl(DynamicTabControl); // Change the control to the next 'TabPage'
+
+                DataGridView nextDataGridView = NextTabControl.SelectedTab.Controls.OfType<DataGridView>().FirstOrDefault(); // Chang the control to the next dataGridView
+                NextDataGridViewValues = DetermineDataGridViewValues(NextTabControl, nextDataGridView); // Write all values from the next dataGridView to a list
+
+                WriteDataGridView(nextDataGridView, DataGridViewValues); // Write the data from the selected dataGridView back to the next dataGridView
+
+                dynamicTabControl.SelectedIndex = index; //Set the selected 'TabPage' as current 'TabPage'
+                WriteDataGridView(dataGridView, NextDataGridViewValues); // Write the data from the next dataGridView back to the selected dataGridView
+
+                NextTabControl = DetermineNextControl(DynamicTabControl); // Change the control to the next 'TabPage'
+            }
+
+            //TODO: Rename folders
+        }
+
+        private TabControl DeterminePreviousControl(TabControl dynamicTabControl)
+        {
+            dynamicTabControl.SelectedIndex = dynamicTabControl.SelectedIndex - 1;
+            return dynamicTabControl;
+        }
+
+        private TabControl DetermineNextControl(TabControl dynamicTabControl)
+        {
+            dynamicTabControl.SelectedIndex = dynamicTabControl.SelectedIndex + 1;
+            return dynamicTabControl;
+        }
+
+        private List<string[]> DetermineDataGridViewValues(TabControl dynamicTabControl, DataGridView dataGridView)
+        {
+            string[] rowValues = new string[2];
+            List<string[]> dataGridViewValues = new List<string[]>();
+
+            // Werte der DataGridview einlesen
+            for (int i = 0; i < dataGridView.Rows.Count - 1; i++)
+            {
+                if (dataGridView[0, i].Value == null)
+                {
+                    rowValues[0] = "";
+                }
+                else
+                {
+                    rowValues[0] = dataGridView[0, i].Value.ToString();
+                }
+
+                if (dataGridView[0, i].Value == null)
+                {
+                    rowValues[1] = "";
+                }
+                else
+                {
+                    rowValues[1] = dataGridView[1, i].Value.ToString();
+                }
+
+                dataGridViewValues.Add(rowValues);
+            }
+
+            return dataGridViewValues;
+        }
+
+        private void WriteDataGridView(DataGridView dataGridView, List<string[]> dataGridViewValues)
+        {
+            dataGridView.Rows.Clear(); // Delete all existing values
+
+            for (int i = 0; i < dataGridViewValues.Count; i++)
+            {
+                dataGridView.Rows.Add();
+                dataGridView[0, i].Value = dataGridViewValues[i].GetValue(0);
+                dataGridView[1, i].Value = dataGridViewValues[i].GetValue(1);
+            }
+
+            dataGridView.Refresh();
+        }
+
+        private void buttonAddTab_Click(object sender, EventArgs e)
+        {
+            AddTabPageWithDataGridView(DynamicTabControl);
+        }
+
+        private void buttonRemoveTab_Click(object sender, EventArgs e)
+        {
+            RemoveTabPage(DynamicTabControl); // Removes the last 'TabPage'
+        }
+
+        private void buttonRemoveSelectedTab_Click(object sender, EventArgs e)
+        {
+            RemoveSelectedTabPage(DynamicTabControl); // Removes the selected 'TabPage' and renumber/rename the others
+        }
+
+        private void buttonMoveTabToLeft_Click(object sender, EventArgs e)
+        {
+            MoveTabToLeft(DynamicTabControl, DynamicTabControl.SelectedTab.Controls.OfType<DataGridView>().FirstOrDefault()); // Moves the selected 'TabPage' to the left and renumber/rename the others
+        }
+
+        private void buttonMoveTabToRight_Click(object sender, EventArgs e)
+        {
+            MoveTabToRight(DynamicTabControl, DynamicTabControl.SelectedTab.Controls.OfType<DataGridView>().FirstOrDefault()); // Moves the selected 'TabPage' to the rigth and renumber/rename the others
+        }
+    }
+}
diff --git a/Test_TabControlsAndDataGridViews/Form1.resx b/Test_TabControlsAndDataGridViews/Form1.resx
new file mode 100644
index 0000000..1af7de1
--- /dev/null
+++ b/Test_TabControlsAndDataGridViews/Form1.resx
@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>
\ No newline at end of file
diff --git a/Test_TabControlsAndDataGridViews/Program.cs b/Test_TabControlsAndDataGridViews/Program.cs
new file mode 100644
index 0000000..d2d8246
--- /dev/null
+++ b/Test_TabControlsAndDataGridViews/Program.cs
@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace Test_TabControlsAndDataGridViews
+{
+    internal static class Program
+    {
+        /// <summary>
+        /// Der Haupteinstiegspunkt für die Anwendung.
+        /// </summary>
+        [STAThread]
+        static void Main()
+        {
+            Application.EnableVisualStyles();
+            Application.SetCompatibleTextRenderingDefault(false);
+            Application.Run(new Form1());
+        }
+    }
+}
diff --git a/Test_TabControlsAndDataGridViews/Properties/AssemblyInfo.cs b/Test_TabControlsAndDataGridViews/Properties/AssemblyInfo.cs
new file mode 100644
index 0000000..2f9d363
--- /dev/null
+++ b/Test_TabControlsAndDataGridViews/Properties/AssemblyInfo.cs
@@ -0,0 +1,36 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// Allgemeine Informationen über eine Assembly werden über die folgenden
+// Attribute gesteuert. Ändern Sie diese Attributwerte, um die Informationen zu ändern,
+// die einer Assembly zugeordnet sind.
+[assembly: AssemblyTitle("Test_TabControlsAndDataGridViews")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("Test_TabControlsAndDataGridViews")]
+[assembly: AssemblyCopyright("Copyright © 2024 by Eugen Höglinger")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Durch Festlegen von ComVisible auf FALSE werden die Typen in dieser Assembly
+// für COM-Komponenten unsichtbar.  Wenn Sie auf einen Typ in dieser Assembly von
+// COM aus zugreifen müssen, sollten Sie das ComVisible-Attribut für diesen Typ auf "True" festlegen.
+[assembly: ComVisible(false)]
+
+// Die folgende GUID bestimmt die ID der Typbibliothek, wenn dieses Projekt für COM verfügbar gemacht wird
+[assembly: Guid("5780cb23-8abe-4dce-95fc-bc35f4ecc14b")]
+
+// Versionsinformationen für eine Assembly bestehen aus den folgenden vier Werten:
+//
+//      Hauptversion
+//      Nebenversion
+//      Buildnummer
+//      Revision
+//
+// Sie können alle Werte angeben oder Standardwerte für die Build- und Revisionsnummern verwenden,
+// indem Sie "*" wie unten gezeigt eingeben:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.*")]
+//[assembly: AssemblyFileVersion("1.0.0.0")] //Wenn auskommentiert, dann gleich wie AssemblyVersion!
diff --git a/Test_TabControlsAndDataGridViews/Properties/Resources.Designer.cs b/Test_TabControlsAndDataGridViews/Properties/Resources.Designer.cs
new file mode 100644
index 0000000..6772edb
--- /dev/null
+++ b/Test_TabControlsAndDataGridViews/Properties/Resources.Designer.cs
@@ -0,0 +1,71 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     Dieser Code wurde von einem Tool generiert.
+//     Laufzeitversion: 4.0.30319.42000
+//
+//     Änderungen an dieser Datei können fehlerhaftes Verhalten verursachen und gehen verloren, wenn
+//     der Code neu generiert wird.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+namespace Test_TabControsAndDataGridViews.Properties
+{
+
+
+    /// <summary>
+    ///   Eine stark typisierte Ressourcenklasse zum Suchen von lokalisierten Zeichenfolgen usw.
+    /// </summary>
+    // Diese Klasse wurde von der StronglyTypedResourceBuilder-Klasse
+    // über ein Tool wie ResGen oder Visual Studio automatisch generiert.
+    // Um einen Member hinzuzufügen oder zu entfernen, bearbeiten Sie die .ResX-Datei und führen dann ResGen
+    // mit der Option /str erneut aus, oder erstellen Sie Ihr VS-Projekt neu.
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "4.0.0.0")]
+    [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+    [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+    internal class Resources
+    {
+
+        private static global::System.Resources.ResourceManager resourceMan;
+
+        private static global::System.Globalization.CultureInfo resourceCulture;
+
+        [global::System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
+        internal Resources()
+        {
+        }
+
+        /// <summary>
+        ///   Gibt die zwischengespeicherte ResourceManager-Instanz zurück, die von dieser Klasse verwendet wird.
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Resources.ResourceManager ResourceManager
+        {
+            get
+            {
+                if ((resourceMan == null))
+                {
+                    global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("Test_TabControsAndDataGridViews.Properties.Resources", typeof(Resources).Assembly);
+                    resourceMan = temp;
+                }
+                return resourceMan;
+            }
+        }
+
+        /// <summary>
+        ///   Überschreibt die CurrentUICulture-Eigenschaft des aktuellen Threads für alle
+        ///   Ressourcenlookups, die diese stark typisierte Ressourcenklasse verwenden.
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Globalization.CultureInfo Culture
+        {
+            get
+            {
+                return resourceCulture;
+            }
+            set
+            {
+                resourceCulture = value;
+            }
+        }
+    }
+}
diff --git a/Test_TabControlsAndDataGridViews/Properties/Resources.resx b/Test_TabControlsAndDataGridViews/Properties/Resources.resx
new file mode 100644
index 0000000..af7dbeb
--- /dev/null
+++ b/Test_TabControlsAndDataGridViews/Properties/Resources.resx
@@ -0,0 +1,117 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>
\ No newline at end of file
diff --git a/Test_TabControlsAndDataGridViews/Properties/Settings.Designer.cs b/Test_TabControlsAndDataGridViews/Properties/Settings.Designer.cs
new file mode 100644
index 0000000..c0481f3
--- /dev/null
+++ b/Test_TabControlsAndDataGridViews/Properties/Settings.Designer.cs
@@ -0,0 +1,30 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by a tool.
+//     Runtime Version:4.0.30319.42000
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+namespace Test_TabControsAndDataGridViews.Properties
+{
+
+
+    [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "11.0.0.0")]
+    internal sealed partial class Settings : global::System.Configuration.ApplicationSettingsBase
+    {
+
+        private static Settings defaultInstance = ((Settings)(global::System.Configuration.ApplicationSettingsBase.Synchronized(new Settings())));
+
+        public static Settings Default
+        {
+            get
+            {
+                return defaultInstance;
+            }
+        }
+    }
+}
diff --git a/Test_TabControlsAndDataGridViews/Properties/Settings.settings b/Test_TabControlsAndDataGridViews/Properties/Settings.settings
new file mode 100644
index 0000000..3964565
--- /dev/null
+++ b/Test_TabControlsAndDataGridViews/Properties/Settings.settings
@@ -0,0 +1,7 @@
+<?xml version='1.0' encoding='utf-8'?>
+<SettingsFile xmlns="http://schemas.microsoft.com/VisualStudio/2004/01/settings" CurrentProfile="(Default)">
+  <Profiles>
+    <Profile Name="(Default)" />
+  </Profiles>
+  <Settings />
+</SettingsFile>
diff --git a/Test_TabControlsAndDataGridViews/Test_TabControlsAndDataGridViews.csproj b/Test_TabControlsAndDataGridViews/Test_TabControlsAndDataGridViews.csproj
new file mode 100644
index 0000000..feb05ba
--- /dev/null
+++ b/Test_TabControlsAndDataGridViews/Test_TabControlsAndDataGridViews.csproj
@@ -0,0 +1,83 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{5780CB23-8ABE-4DCE-95FC-BC35F4ECC14B}</ProjectGuid>
+    <OutputType>WinExe</OutputType>
+    <RootNamespace>Test_TabControlsAndDataGridViews</RootNamespace>
+    <AssemblyName>Test_TabControlsAndDataGridViews</AssemblyName>
+    <TargetFrameworkVersion>v4.7.2</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
+    <Deterministic>false</Deterministic>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Deployment" />
+    <Reference Include="System.Drawing" />
+    <Reference Include="System.Net.Http" />
+    <Reference Include="System.Windows.Forms" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Form1.cs">
+      <SubType>Form</SubType>
+    </Compile>
+    <Compile Include="Form1.Designer.cs">
+      <DependentUpon>Form1.cs</DependentUpon>
+    </Compile>
+    <Compile Include="Program.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+    <EmbeddedResource Include="Form1.resx">
+      <DependentUpon>Form1.cs</DependentUpon>
+    </EmbeddedResource>
+    <EmbeddedResource Include="Properties\Resources.resx">
+      <Generator>ResXFileCodeGenerator</Generator>
+      <LastGenOutput>Resources.Designer.cs</LastGenOutput>
+      <SubType>Designer</SubType>
+    </EmbeddedResource>
+    <Compile Include="Properties\Resources.Designer.cs">
+      <AutoGen>True</AutoGen>
+      <DependentUpon>Resources.resx</DependentUpon>
+    </Compile>
+    <None Include="Properties\Settings.settings">
+      <Generator>SettingsSingleFileGenerator</Generator>
+      <LastGenOutput>Settings.Designer.cs</LastGenOutput>
+    </None>
+    <Compile Include="Properties\Settings.Designer.cs">
+      <AutoGen>True</AutoGen>
+      <DependentUpon>Settings.settings</DependentUpon>
+      <DesignTimeSharedInput>True</DesignTimeSharedInput>
+    </Compile>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="App.config" />
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+</Project>
\ No newline at end of file
diff --git a/Test_TabControlsAndDataGridViews/bin/Debug/Test_TabControlsAndDataGridViews.exe b/Test_TabControlsAndDataGridViews/bin/Debug/Test_TabControlsAndDataGridViews.exe
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diff --git a/Test_TabControlsAndDataGridViews/bin/Debug/Test_TabControlsAndDataGridViews.exe.config b/Test_TabControlsAndDataGridViews/bin/Debug/Test_TabControlsAndDataGridViews.exe.config
new file mode 100644
index 0000000..56efbc7
--- /dev/null
+++ b/Test_TabControlsAndDataGridViews/bin/Debug/Test_TabControlsAndDataGridViews.exe.config
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.2" />
+    </startup>
+</configuration>
\ No newline at end of file
diff --git a/Test_TabControlsAndDataGridViews/bin/Debug/Test_TabControlsAndDataGridViews.pdb b/Test_TabControlsAndDataGridViews/bin/Debug/Test_TabControlsAndDataGridViews.pdb
new file mode 100644
index 0000000..d76ab2f
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diff --git a/Test_TabControlsAndDataGridViews/obj/Debug/.NETFramework,Version=v4.7.2.AssemblyAttributes.cs b/Test_TabControlsAndDataGridViews/obj/Debug/.NETFramework,Version=v4.7.2.AssemblyAttributes.cs
new file mode 100644
index 0000000..3871b18
--- /dev/null
+++ b/Test_TabControlsAndDataGridViews/obj/Debug/.NETFramework,Version=v4.7.2.AssemblyAttributes.cs
@@ -0,0 +1,4 @@
+// <autogenerated />
+using System;
+using System.Reflection;
+[assembly: global::System.Runtime.Versioning.TargetFrameworkAttribute(".NETFramework,Version=v4.7.2", FrameworkDisplayName = ".NET Framework 4.7.2")]
diff --git a/Test_TabControlsAndDataGridViews/obj/Debug/DesignTimeResolveAssemblyReferences.cache b/Test_TabControlsAndDataGridViews/obj/Debug/DesignTimeResolveAssemblyReferences.cache
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diff --git a/Test_TabControlsAndDataGridViews/obj/Debug/DesignTimeResolveAssemblyReferencesInput.cache b/Test_TabControlsAndDataGridViews/obj/Debug/DesignTimeResolveAssemblyReferencesInput.cache
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diff --git a/Test_TabControlsAndDataGridViews/obj/Debug/Test_TabControlsAndDataGridViews.Form1.resources b/Test_TabControlsAndDataGridViews/obj/Debug/Test_TabControlsAndDataGridViews.Form1.resources
new file mode 100644
index 0000000..6c05a97
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diff --git a/Test_TabControlsAndDataGridViews/obj/Debug/Test_TabControlsAndDataGridViews.Properties.Resources.resources b/Test_TabControlsAndDataGridViews/obj/Debug/Test_TabControlsAndDataGridViews.Properties.Resources.resources
new file mode 100644
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diff --git a/Test_TabControlsAndDataGridViews/obj/Debug/Test_TabControlsAndDataGridViews.csproj.AssemblyReference.cache b/Test_TabControlsAndDataGridViews/obj/Debug/Test_TabControlsAndDataGridViews.csproj.AssemblyReference.cache
new file mode 100644
index 0000000..825f721
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diff --git a/Test_TabControlsAndDataGridViews/obj/Debug/Test_TabControlsAndDataGridViews.csproj.CoreCompileInputs.cache b/Test_TabControlsAndDataGridViews/obj/Debug/Test_TabControlsAndDataGridViews.csproj.CoreCompileInputs.cache
new file mode 100644
index 0000000..cf6f1c0
--- /dev/null
+++ b/Test_TabControlsAndDataGridViews/obj/Debug/Test_TabControlsAndDataGridViews.csproj.CoreCompileInputs.cache
@@ -0,0 +1 @@
+ffeb981a72357c13c78580d1de8dfcfdeab69b3831ebd504970e578b1a834c6f
diff --git a/Test_TabControlsAndDataGridViews/obj/Debug/Test_TabControlsAndDataGridViews.csproj.FileListAbsolute.txt b/Test_TabControlsAndDataGridViews/obj/Debug/Test_TabControlsAndDataGridViews.csproj.FileListAbsolute.txt
new file mode 100644
index 0000000..78f9d3e
--- /dev/null
+++ b/Test_TabControlsAndDataGridViews/obj/Debug/Test_TabControlsAndDataGridViews.csproj.FileListAbsolute.txt
@@ -0,0 +1,10 @@
+C:\CAD\Git-WorkRepository\VisualStudio\_TEST\Test_TabControlsAndDataGridViews.git\Test_TabControlsAndDataGridViews\bin\Debug\Test_TabControlsAndDataGridViews.exe.config
+C:\CAD\Git-WorkRepository\VisualStudio\_TEST\Test_TabControlsAndDataGridViews.git\Test_TabControlsAndDataGridViews\bin\Debug\Test_TabControlsAndDataGridViews.exe
+C:\CAD\Git-WorkRepository\VisualStudio\_TEST\Test_TabControlsAndDataGridViews.git\Test_TabControlsAndDataGridViews\bin\Debug\Test_TabControlsAndDataGridViews.pdb
+C:\CAD\Git-WorkRepository\VisualStudio\_TEST\Test_TabControlsAndDataGridViews.git\Test_TabControlsAndDataGridViews\obj\Debug\Test_TabControlsAndDataGridViews.csproj.AssemblyReference.cache
+C:\CAD\Git-WorkRepository\VisualStudio\_TEST\Test_TabControlsAndDataGridViews.git\Test_TabControlsAndDataGridViews\obj\Debug\Test_TabControlsAndDataGridViews.Form1.resources
+C:\CAD\Git-WorkRepository\VisualStudio\_TEST\Test_TabControlsAndDataGridViews.git\Test_TabControlsAndDataGridViews\obj\Debug\Test_TabControlsAndDataGridViews.Properties.Resources.resources
+C:\CAD\Git-WorkRepository\VisualStudio\_TEST\Test_TabControlsAndDataGridViews.git\Test_TabControlsAndDataGridViews\obj\Debug\Test_TabControlsAndDataGridViews.csproj.GenerateResource.cache
+C:\CAD\Git-WorkRepository\VisualStudio\_TEST\Test_TabControlsAndDataGridViews.git\Test_TabControlsAndDataGridViews\obj\Debug\Test_TabControlsAndDataGridViews.csproj.CoreCompileInputs.cache
+C:\CAD\Git-WorkRepository\VisualStudio\_TEST\Test_TabControlsAndDataGridViews.git\Test_TabControlsAndDataGridViews\obj\Debug\Test_TabControlsAndDataGridViews.exe
+C:\CAD\Git-WorkRepository\VisualStudio\_TEST\Test_TabControlsAndDataGridViews.git\Test_TabControlsAndDataGridViews\obj\Debug\Test_TabControlsAndDataGridViews.pdb
diff --git a/Test_TabControlsAndDataGridViews/obj/Debug/Test_TabControlsAndDataGridViews.csproj.GenerateResource.cache b/Test_TabControlsAndDataGridViews/obj/Debug/Test_TabControlsAndDataGridViews.csproj.GenerateResource.cache
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