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CheckedListBox.ThreeDCheckBoxes Property

Gets or sets a value indicating whether the check boxes have a System.Windows.Forms.ButtonState of Flat or Normal.

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

public bool ThreeDCheckBoxes { get; set; }

Property Value

Type: System.Boolean
true if the check box has a flat appearance; otherwise, false. The default is true.

The following code example demonstrates initializing a CheckedListBox control by setting the CheckOnClick, SelectionMode, and ThreeDCheckBoxes properties. The example populates the CheckedListBox with controls and sets the DisplayMember to the Control.Name property of the control.

To run the example, paste the following code in a form containing a CheckedListBox named CheckedListBox1 and call the InitializeCheckListBox method from the form's constructor or Load method.


	// This method initializes CheckedListBox1 with a list of all 
	// the controls on the form. It sets the selection mode
	// to single selection and allows selection with a single click.
	// It adds itself to the list before adding itself to the form.

	internal System.Windows.Forms.CheckedListBox CheckedListBox1;

	private void InitializeCheckedListBox()
	{
		this.CheckedListBox1 = new CheckedListBox();
		this.CheckedListBox1.Location = new System.Drawing.Point(40, 90);
		this.CheckedListBox1.CheckOnClick = true;
		this.CheckedListBox1.Name = "CheckedListBox1";
		this.CheckedListBox1.Size = new System.Drawing.Size(120, 94);
		this.CheckedListBox1.TabIndex = 1;
		this.CheckedListBox1.SelectionMode = SelectionMode.One;
		this.CheckedListBox1.ThreeDCheckBoxes = true;

		foreach ( Control aControl in this.Controls )
		{
			this.CheckedListBox1.Items.Add(aControl, false);
		}

		this.CheckedListBox1.DisplayMember = "Name";
		this.CheckedListBox1.Items.Add(CheckedListBox1);
		this.Controls.Add(this.CheckedListBox1);
	}



The following code example demonstrates initializing a CheckedListBox control by setting the CheckedListBox.CheckOnClick, CheckedListBox.SelectionMode, and CheckedListBox.3DCheckBoxes properties. The example populates the 
CheckedListBox with controls and sets the CheckedListBox.Display member to the name property of the control.

To run the example, paste the following code in a form containing a CheckedListBox named CheckedListBox1 and call the InitializeCheckListBox method from the form's constructor or Load method.


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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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