StateManagedCollection.System.Collections.IList.Add Method

Adds an item to the StateManagedCollection collection.

Namespace: System.Web.UI
Assembly: System.Web (in system.web.dll)

int IList.Add (
	Object value
Not applicable.



The object to add to the StateManagedCollection.

Return Value

The position at which the new element was inserted.

Exception typeCondition


The specified value is a null reference (Nothing in Visual Basic).

The OnValidate and OnInsert methods are called before the element is added to the collection, and the OnInsertComplete method is called after the element is added.

Windows 98, Windows Server 2000 SP4, 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