TabControl.HotTrack Property

Gets or sets a value indicating whether the control's tabs change in appearance when the mouse passes over them.

Namespace:  System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

public bool HotTrack { get; set; }

Property Value

Type: System.Boolean
true if the tabs change in appearance when the mouse passes over them; otherwise, false. The default is false.

The color that the tab changes to when the mouse is over it is determined by the local computer's system colors. To change the system colors, use Control Panel.

The following code example creates a TabControl with two TabPage objects. The HotTrack property is set to true, which highlights the tab Text myTabPage1 or myTabPage2 when the mouse passes over the tabs.

Use the System.Drawing and System.Windows.Forms namespaces for this example.

using System.Drawing;
using System.Windows.Forms;

public class Form1 : Form
{
    private TabControl tabControl1;
    private TabPage tabPage1;
    private TabPage tabPage2;

    private void MyTabs()
    {
        this.tabControl1 = new TabControl();
        this.tabPage1 = new TabPage();
        this.tabPage2 = new TabPage();

        this.tabControl1.Controls.AddRange(new Control[] {
            this.tabPage1,
            this.tabPage2});
        this.tabControl1.Padding = new Point(15, 10);
        this.tabControl1.Location = new Point(35, 25);
        this.tabControl1.Size = new Size(220, 220);

        // Highlights TabPage.Text when the mouse passes over tabs. 
        this.tabControl1.HotTrack = true;

        this.tabPage1.Text = "myTabPage1";
        this.tabPage2.Text = "myTabPage2";

        this.Size = new Size(300, 300);
        this.Controls.AddRange(new Control[] {
            this.tabControl1});
    }

    public Form1()
    {
        MyTabs();
    }

    static void Main() 
    {
        Application.Run(new Form1());
    }
}

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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