This documentation is archived and is not being maintained.

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


Type: System.Web.UI.Control
The Control for which to stop persistence of control state.


The Control is null.

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.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

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.