private void SortClick(object sender, RoutedEventArgs e)
{
GridViewColumnHeader column = sender as GridViewColumnHeader;
String field = column.Tag as String;
if (_CurSortCol != null)
{
AdornerLayer.GetAdornerLayer(_CurSortCol).Remove(_CurAdorner);
lstAnalysisDetails.Items.SortDescriptions.Clear();
}
ListSortDirection newDir = ListSortDirection.Ascending;
if (_CurSortCol == column && _CurAdorner.Direction == newDir)
newDir = ListSortDirection.Descending;
_CurSortCol = column;
_CurAdorner = new SortAdorner(_CurSortCol, newDir);
AdornerLayer.GetAdornerLayer(_CurSortCol).Add(_CurAdorner);
lstAnalysisDetails.Items.SortDescriptions.Add(new SortDescription(field, newDir));
}