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Page.RequiresControlState Method

Determines whether the specified Control object is registered to participate in control state management.

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

public bool RequiresControlState(
	Control control
)

Parameters

control
Type: System.Web.UI.Control

The Control to check for a control state requirement.

Return Value

Type: System.Boolean
true if the specified Control requires control state; otherwise, false

Control state is an object composed of critical view-state data that Web server controls need to function; it is contained in a separate object from normal view state.

Custom controls using control state must call the RegisterRequiresControlState method before saving control state. Use the RequiresControlState method to check for controls that are registered with the page as requiring control state.

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0

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