SelectionList::SelectedIndex Property
Returns the index of the selected item. The default value is -1. This API is obsolete. For information about how to develop ASP.NET mobile applications, see the www.asp.net/mobile Web site.
Assembly: System.Web.Mobile (in System.Web.Mobile.dll)
| Exception | Condition |
|---|---|
| ArgumentOutOfRangeException | an attempt was made to set the SelectedIndex property to less than -1 or greater than or equal to the number of items. |
If the control is in multiple selection mode, this property returns the index of the first selected item. The selected index cannot be set declaratively; use the Selected property of a list item instead. Set the SelectedIndex to -1 to clear the selection. This is useful when you want to dynamically remove items from the list.
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.