Fires when new column is about to be inserted into the collection.
Namespace:
Aurigma.GraphicsMill.WinControls
Assembly:
Aurigma.GraphicsMill.WinControls (in Aurigma.GraphicsMill.WinControls.dll)
Public Event ColumnInserting As ColumnInsertingEventHandler
public event ColumnInsertingEventHandler ColumnInserting