} /* method ListViewSorter OnIsSortableChanged */
/// <summary>
/// Sorts the ListView on the given column
/// </summary>
/// <param name="columnHeader"></param>
/// <param name="listView"></param>
/// <remarks>
/// The data will be sorted by suppling a SortDescription. The property name for the
/// sort will come from one of three places in order
/// 1) - Explicitly specfied name (SortPropertyName attached property)
/// 2) - A XPath specification in the column binding
/// 3) - The Path property from the binding Path
/// </remarks>
static public void SortByColumn(GridViewColumnHeader columnHeader, ListView listView)
{
GridViewColumnHeader last_sorted_header;
ListSortDirection sort_direction;
SortDirectionAdorner adorner;
string sort_property_name;
Binding binding;
if (columnHeader.Column != null) // user clicked a valid column header
{
/*
* Determine the sort property name
* If we cannot determine it, do nothing
* */
if ((sort_property_name = GetSortPropertyName(columnHeader)) == null)
{
/*
* Binding is not present if a CellTemplate is used
* */
if ((binding = ((Binding)columnHeader.Column.DisplayMemberBinding)) == null)
{
goto function_exit;
}
sort_property_name = binding.XPath;
if (string.IsNullOrEmpty(sort_property_name))
{
sort_property_name = ((Binding)columnHeader.Column.DisplayMemberBinding).Path.Path;
}
}
last_sorted_header = GetLastColumnSorted(listView);
if (last_sorted_header != null)
{
AdornerLayer.GetAdornerLayer(last_sorted_header).Remove(GetAdorner(last_sorted_header));
}
sort_direction = ((GetLastSortDirection(columnHeader) == ListSortDirection.Ascending) ?
ListSortDirection.Descending : ListSortDirection.Ascending);
SetLastSortDirection(columnHeader, sort_direction);
SetLastColumnSorted(listView, columnHeader);
listView.Items.SortDescriptions.Clear();
listView.Items.SortDescriptions.Add(new SortDescription(sort_property_name, sort_direction));
adorner = new SortDirectionAdorner(columnHeader, sort_direction);
SetAdorner(columnHeader, adorner);
AdornerLayer.GetAdornerLayer(columnHeader).Add(adorner);
}
function_exit:
;
} /* method ListViewSorter SortByColumn */
/// <summary>
/// Sorts the ListView on the given column
/// </summary>
/// <param name="columnHeader"></param>
/// <param name="listView"></param>
/// <remarks>
/// The data will be sorted by suppling a SortDescription. The property name for the
/// sort will come from one of three places in order
/// 1) - Explicitly specfied name (SortPropertyName attached property)
/// 2) - A XPath specification in the column binding
/// 3) - The Path property from the binding Path
/// </remarks>
public static void SortByColumn(GridViewColumnHeader columnHeader, ListView listView)
{
GridViewColumnHeader last_sorted_header;
ListSortDirection sort_direction;
SortDirectionAdorner adorner;
string sort_property_name;
Binding binding;
if (columnHeader.Column != null) // user clicked a valid column header
{
/*
* Determine the sort property name
* If we cannot determine it, do nothing
* */
if ((sort_property_name = GetSortPropertyName(columnHeader)) == null)
{
/*
* Binding is not present if a CellTemplate is used
* */
if ((binding = ((Binding)columnHeader.Column.DisplayMemberBinding)) == null)
goto function_exit;
sort_property_name = binding.XPath;
if (string.IsNullOrEmpty(sort_property_name))
sort_property_name = ((Binding)columnHeader.Column.DisplayMemberBinding).Path.Path;
}
last_sorted_header = GetLastColumnSorted(listView);
if (last_sorted_header != null)
AdornerLayer.GetAdornerLayer(last_sorted_header).Remove(GetAdorner(last_sorted_header));
sort_direction = ((GetLastSortDirection(columnHeader) == ListSortDirection.Ascending) ?
ListSortDirection.Descending : ListSortDirection.Ascending);
SetLastSortDirection(columnHeader, sort_direction);
SetLastColumnSorted(listView, columnHeader);
listView.Items.SortDescriptions.Clear();
listView.Items.SortDescriptions.Add(new SortDescription(sort_property_name, sort_direction));
adorner = new SortDirectionAdorner(columnHeader, sort_direction);
SetAdorner(columnHeader, adorner);
AdornerLayer.GetAdornerLayer(columnHeader).Add(adorner);
}
function_exit:
;
}
