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 override void Focus()

Exception Condition
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
Available since 2.0
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