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ListBox::SelectionMode Property

Gets or sets the selection mode of the ListBox control.

Namespace:  System.Web.UI.WebControls
Assembly:  System.Web (in System.Web.dll)

public:
virtual property ListSelectionMode SelectionMode {
	ListSelectionMode get ();
	void set (ListSelectionMode value);
}
<asp:ListBox SelectionMode="ListSelectionMode" />

Property Value

Type: System.Web.UI.WebControls::ListSelectionMode
One of the ListSelectionMode values. The default value is Single.

ExceptionCondition
ArgumentOutOfRangeException

The specified selection mode is not one of the ListSelectionMode values.

Use the SelectionMode property to specify the mode behavior of the ListBox control. Setting this property to ListSelectionMode.Single indicates only a single item can be selected from the ListBox control, while ListSelectionMode.Multiple specifies multiple items can be selected.

The value of the SelectionMode property is stored in view state.

TopicLocation
How to: Add ListBox Web Server Controls to a Web Forms PageBuilding ASP .NET Web Applications
How to: Add ListBox Web Server Controls to a Web Forms PageBuilding ASP .NET Web Applications
How to: Set the Selection in List Web Server Controls (Visual Studio)Building ASP .NET Web Applications in Visual Studio

The following example illustrates how to use the SelectionMode property to allow the user to select multiple selections from the ListBox control.

No code example is currently available or this language may not be supported.

.NET Framework

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

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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