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);
 }
 

.NET Framework

Supported in: 4.5.3, 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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