Hides the VerbStyle property at design time.
Assembly: System.Design (in System.Design.dll)
The method overrides ControlDesigner.PreFilterProperties to hide the VerbStyle property in the designer after calling the parent method. This is because the default WebPartZoneBase control does not render any zone-level verbs. If you wish to render zone-level verbs in a derived class, you must override this method to not hide the VerbStyle property.