private static DataGridColumnCollectionBehaviour GetOrCreateBehaviour(DependencyObject source)
{
DataGridColumnCollectionBehaviour behaviour = DataGridColumnCollection.GetColumnCollectionBehaviour(source);
if (behaviour == null)
{
behaviour = new DataGridColumnCollectionBehaviour(source as DataGrid);
DataGridColumnCollection.SetColumnCollectionBehaviour(source, behaviour);
}
return(behaviour);
}
public static void SetColumnCollectionBehaviour(DependencyObject obj, DataGridColumnCollectionBehaviour value)
{
obj.SetValue(ColumnCollectionBehaviourProperty, value);
}
