This documentation is archived and is not being maintained.

ComboBox.SelectionLength Property

Gets or sets the number of characters selected in the editable portion of the combo box.

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

public int SelectionLength { get; set; }
/** @property */
public int get_SelectionLength ()

/** @property */
public void set_SelectionLength (int value)

public function get SelectionLength () : int

public function set SelectionLength (value : int)

Not applicable.

Property Value

The number of characters selected in the combo box.

Exception typeCondition


The value was less than zero.

You can use this property to determine whether any characters are currently selected in the combo box control before performing operations on the selected text. When the value of the SelectionLength property is set to a value that is larger than the number of characters within the text of the control, the value of the SelectionLength property is set to the entire length of text within the control minus the value of the SelectionStart property (if any value is specified for the SelectionStart property).

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

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0