private static void ExchangeRows(object sender, object target)
{
var draggedRow = RowDragHelper.GetDraggedItem(sender as DependencyObject);
if (draggedRow == null)
{
return;
}
if (target != null && !ReferenceEquals(draggedRow, target))
{
var list = ((DataGrid)sender).ItemsSource as IList;
if (list == null)
{
return;
}
int oldIndex = list.IndexOf(draggedRow);
var targetIndex = list.IndexOf(target);
list.Remove(draggedRow);
list.Insert(targetIndex, draggedRow);
//Console.WriteLine("Row Switch");
RowSwitchEventArgs args = new RowSwitchEventArgs()
{
PrimaryRowIndex = targetIndex,
DisplacedRowIndex = oldIndex
};
OnRowSwitch(args);
}
}
private void RowDragHelperOnRowSwitched(object sender, RowSwitchEventArgs e)
{
var primaryItem = OrderGrid.Items[e.PrimaryRowIndex] as CustomProgram;
var displacedItem = OrderGrid.Items[e.DisplacedRowIndex] as CustomProgram;
SetOrder(primaryItem, e.PrimaryRowIndex);
SetOrder(displacedItem, e.DisplacedRowIndex);
}
public static void OnRowSwitch(RowSwitchEventArgs e)
{
EventHandler <RowSwitchEventArgs> handler = RowSwitched;
handler?.Invoke(typeof(RowDragHelper), e);
}
