Groups collapsed when sorting

[Sven Bisaro]

Hi,

I have two questions:

1) Is there a way to disable the collapsing of the groups when a user clicks on a column to sort on that column?
2) Is there an event thrown when the user clicks on the header of a column to sort the column? (OnSorting / OnSorted )

Thanks.

[Clay Burch]

1) Currently, there is no property setting that will prevent losing your groups on a Sort.

2) You can catch the "OnSorted" action by listening to the grid.Model.TableProperties.SortColumns.CollectionChanged event. You can catch the "OnSorting" using a preview mouse down event.

 public Window1()
        {
            InitializeComponent();

            //subscribe to the events after the Model has been loaded...
            dataGrid.ModelLoaded += (s, e) =>
            {
                dataGrid.PreviewMouseDown += new MouseButtonEventHandler(dataGrid_PreviewMouseDown);
                dataGrid.Model.TableProperties.SortColumns.CollectionChanged += new NotifyCollectionChangedEventHandler(SortColumns_CollectionChanged);
            };
        }

        void dataGrid_PreviewMouseDown(object sender, MouseButtonEventArgs e)
        {
            RowColumnIndex cell = dataGrid.Model.Views.First().PointToCellRowColumnIndex(e.GetPosition(dataGrid));
            if (cell.RowIndex == dataGrid.Model.HeaderRows + 1)
            {
                Console.WriteLine("Sorting column {0}   {1}", cell.ColumnIndex, dataGrid.VisibleColumns[cell.ColumnIndex].MappingName);
            }
        }

       void SortColumns_CollectionChanged(object sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e)
        {
            Console.WriteLine("Sorted Action= {0}", e.Action);
        }