private static void SortDirectionChanged(object sender, EventArgs args)
{
DataGridColumn column = sender as DataGridColumn;
if (column == null)
return;
Sorter s = new Sorter(column.Header.ToString(), column.SortDirection);
// Execute command
ICommand command = GetCustomSortCommand(column);
if (command != null && command.CanExecute(s))
command.Execute(s);
}
