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DataList::SelectedIndex Property

Gets or sets the index of the selected item in the DataList control.

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

[BindableAttribute(true)]
public:
virtual property int SelectedIndex {
	int get ();
	void set (int value);
}
<asp:DataList SelectedIndex="Int32" />

Property Value

Type: System::Int32
The index of the selected item in the DataList control.

ExceptionCondition
ArgumentOutOfRangeException

The specified value is less than -1.

Use the SelectedIndex property to programmatically specify the selected item in the DataList control. You can also use this property to determine the index of the selected item.

NoteNote

The SelectedIndex property is zero based.

To deselect an item, set the SelectedIndex property to -1.

The SelectedIndex property is stored in control state.

The following code example demonstrates how to use the SelectedIndex property to specify the selected item in the DataList control.

NoteNote

The following code sample uses the single-file code model and may not work correctly if copied directly into a code-behind file. This code sample must be copied into an empty text file that has an .aspx extension. For more information on the Web Forms code model, see ASP.NET Web Forms Page Code Model.

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

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

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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