Raises the ColumnWidthChanging event.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
The ColumnWidthChanging event will not occur if the Window's full drag feature, the "Show Window Contents While Dragging" option, is disabled.
Raising an event invokes the event handler through a delegate. For more information, see Handling and Raising Events.
The method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.Notes to Inheritors
When overriding in a derived class, be sure to call the base class's method so that registered delegates receive the event.