//排序

        private void listViewColumnHeader_Click(object sender, RoutedEventArgs e)
        {
            GridViewColumnHeader column = (sender as GridViewColumnHeader);
            string sortBy = column.Tag.ToString();

            if (listViewSortCol != null)
            {
                AdornerLayer.GetAdornerLayer(listViewSortCol).Remove(listViewSortAdorner);
                listView.Items.SortDescriptions.Clear();
            }

            ListSortDirection newDir = ListSortDirection.Ascending;

            if (listViewSortCol == column && listViewSortAdorner.Direction == newDir)
            {
                newDir = ListSortDirection.Descending;
            }

            listViewSortCol     = column;
            listViewSortAdorner = new SortAdorner(listViewSortCol, newDir);
            AdornerLayer.GetAdornerLayer(listViewSortCol).Add(listViewSortAdorner);
            listView.Items.SortDescriptions.Add(new SortDescription(sortBy, newDir));
        }