private static void OnListViewHeaderClick(object sender, RoutedEventArgs e)
{
SortableListView listView = e.Source as SortableListView;
if (listView == null)
{
return;
}
GridViewColumnHeader header = e.OriginalSource as GridViewColumnHeader;
if (header == null)
{
return;
}
var proName = header.Column.GetValue(SortFieldProperty) as string;
if (proName == null)
{
return;
}
SortInfo sortInfo = listView.GetValue(SortInfoProperty.DependencyProperty) as SortInfo;
if (sortInfo != null)
{
AdornerLayer.GetAdornerLayer(sortInfo.LastSortColumn).Remove(sortInfo.CurrentAdorner);
listView.Items.SortDescriptions.Clear();
}
else
{
sortInfo = new SortInfo();
}
if (sortInfo.LastSortColumn == header)
{
(sortInfo.CurrentAdorner.Child as ListSortDecorator).SortDirection = (sortInfo.CurrentAdorner.Child as ListSortDecorator).SortDirection == ListSortDirection.Ascending ? ListSortDirection.Descending : ListSortDirection.Ascending;
}
else
{
sortInfo.CurrentAdorner = new UIElementAdorner(header, new ListSortDecorator());
}
sortInfo.LastSortColumn = header;
listView.SetValue(SortInfoProperty, sortInfo);
AdornerLayer.GetAdornerLayer(header).Add(sortInfo.CurrentAdorner);
//SortDescription sortDescriptioin = new SortDescription()
//{
// Direction = (sortInfo.CurrentAdorner.Child as ListSortDecorator).SortDirection,
// PropertyName = header.Column.GetValue(SortFieldProperty) as string ?? header.Column.Header as string
//};
if ((sortInfo.CurrentAdorner.Child as ListSortDecorator).SortDirection == ListSortDirection.Descending)
{
listView.OnSort(proName + " desc");
}
else
{
listView.OnSort(proName);
}
//listView.Items.SortDescriptions.Add(sortDescriptioin);
}
internal static void SetSortInfo(DependencyObject obj, SortInfo value)
{
obj.SetValue(SortInfoProperty.DependencyProperty, value);
}