Page.UnregisterRequiresControlState Method

Stops persistence of control state for the specified control.

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

public void UnregisterRequiresControlState (
	Control control
public void UnregisterRequiresControlState (
	Control control
public function UnregisterRequiresControlState (
	control : Control
Not applicable.



The Control for which to stop persistence of control state.

Exception typeCondition


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

Custom server controls that use control state must call the RegisterRequiresControlState on each request during before the state is persisted. Registration for control state is not carried over from request to request during a postback. Use the UnregisterRequiresControlState method to ensure that control state is not persisted for controls that no longer need to be persisted for postback.

Internally, the UnregisterRequiresControlState method is invoked when using the RemovedControl method to remove a control from a controls collection.

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

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