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CheckBox.AutoCheck Property

Gets or set a value indicating whether the Checked or CheckState values and the CheckBox's appearance are automatically changed when the CheckBox is clicked.

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

public bool AutoCheck { get; set; }

Property Value

Type: System.Boolean
true if the Checked value or CheckState value and the appearance of the control are automatically changed on the Click event; otherwise, false. The default value is true.

If AutoCheck is set to false, you will need to add code to update the Checked or CheckState values in the Click event handler.

The following code example creates and initializes a CheckBox, gives it the appearance of a toggle button, sets AutoCheck to false, and adds it to a Form.

public void InstantiateMyCheckBox()
 {
    // Create and initialize a CheckBox.   
    CheckBox checkBox1 = new CheckBox(); 

    // Make the check box control appear as a toggle button.
    checkBox1.Appearance = Appearance.Button;

    // Turn off the update of the display on the click of the control.
    checkBox1.AutoCheck = false;

    // Add the check box control to the form.
    Controls.Add(checkBox1);
 }

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC

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

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

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