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DropDownList.SelectedIndex Property

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

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

abstract SelectedIndex : int with get, set 
override SelectedIndex : int with get, set
<asp:DropDownList SelectedIndex="Int32" />

Property Value

Type: System.Int32
The index of the selected item in the DropDownList control. The default value is 0, which selects the first item in the list.

Use the SelectedIndex property to programmatically specify or determine the index of the selected item from the DropDownList control. An item is always selected in the DropDownList control. You cannot clear the selection from every item in the list at the same time.

NoteNote

The indexes for the items in the DropDownList control are zero-based.

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

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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