DesignerRegionMouseEventArgs Class
Assembly: System.Design (in system.design.dll)
The ViewEvent event is raised by the designer host for certain actions on a control on the design surface. For example, an event is raised when you click a selected control or a designer region in a selected control on the design surface.
The ControlDesigner class supplies a default delegate to handle the ViewEvent event. When you click a selected control or a designer region of a selected control at design time, the designer host initializes a ViewEventArgs object for a Click event type, and then sets the EventArgs property with a DesignerRegionMouseEventArgs object.
When the ViewEventArgs object indicates that you clicked a designer region, the default delegate in the ControlDesigner class passes the DesignerRegionMouseEventArgs object to the OnClick method. Classes deriving from the ControlDesigner class override the OnClick method to process events that are raised when you click a control in the design host.
The Region property represents the control designer region that the event applies to, if any. The Location property represents the location on the design surface that was clicked.
For more information about events and delegates, see Events and Delegates.
The following code example shows how to use the DesignerRegionMouseEventArgs to identify the region that was clicked and to change the view accordingly. This example is part of a larger example provided for the EditableDesignerRegion class.