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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.

.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.
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