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WebPartManager::Focus Method

Overridden to prevent focus from ever being set on the WebPartManager control, because it has no user interface (UI).

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

public:
virtual void Focus() override

ExceptionCondition
NotSupportedException

A caller tries to call the Focus method, which is not supported in a control that has no UI.

The Focus method overrides the base Control::Focus method, and throws an exception if a caller calls the method. Because the WebPartManager control has no UI and is never visible to users, it can never allow focus to be set on itself.

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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