protected void defaultSort() { if (ItemsSource == null) { return; } this.SelectedIndex = 0; GridView gridView = this.View as GridView; if (gridView != null) { SortableGridViewColumn sortableGridViewColumn = null; foreach (GridViewColumn gridViewColumn in gridView.Columns) { sortableGridViewColumn = gridViewColumn as SortableGridViewColumn; if (sortableGridViewColumn != null) { if (sortableGridViewColumn.IsDefaultSortColumn) { break; } sortableGridViewColumn = null; } } if (sortableGridViewColumn != null) { lastSortedOnColumn = sortableGridViewColumn; Sort(sortableGridViewColumn.SortPropertyName, ListSortDirection.Ascending); if (!String.IsNullOrEmpty(this.ColumnHeaderSortedAscendingTemplate)) { sortableGridViewColumn.HeaderTemplate = this.TryFindResource(ColumnHeaderSortedAscendingTemplate) as DataTemplate; } this.SelectedIndex = 0; } } }
private void GridViewColumnHeaderClickedHandler(object sender, RoutedEventArgs e) { GridViewColumnHeader headerClicked = e.OriginalSource as GridViewColumnHeader; if (headerClicked != null && headerClicked.Role != GridViewColumnHeaderRole.Padding) { SortableGridViewColumn sortableGridViewColumn = (headerClicked.Column) as SortableGridViewColumn; if (sortableGridViewColumn != null && !String.IsNullOrEmpty(sortableGridViewColumn.SortPropertyName)) { ListSortDirection direction; bool newSortColumn = false; if (lastSortedOnColumn == null || String.IsNullOrEmpty(lastSortedOnColumn.SortPropertyName) || !String.Equals(sortableGridViewColumn.SortPropertyName, lastSortedOnColumn.SortPropertyName, StringComparison.InvariantCultureIgnoreCase)) { newSortColumn = true; direction = ListSortDirection.Ascending; } else { if (lastDirection == ListSortDirection.Ascending) { direction = ListSortDirection.Descending; } else { direction = ListSortDirection.Ascending; } } string sortPropertyName = sortableGridViewColumn.SortPropertyName; Sort(sortPropertyName, direction); if (direction == ListSortDirection.Ascending) { if (!String.IsNullOrEmpty(this.ColumnHeaderSortedAscendingTemplate)) { sortableGridViewColumn.HeaderTemplate = this.TryFindResource(ColumnHeaderSortedAscendingTemplate) as DataTemplate; } else { sortableGridViewColumn.HeaderTemplate = null; } } else { if (!String.IsNullOrEmpty(this.ColumnHeaderSortedDescendingTemplate)) { sortableGridViewColumn.HeaderTemplate = this.TryFindResource(ColumnHeaderSortedDescendingTemplate) as DataTemplate; } else { sortableGridViewColumn.HeaderTemplate = null; } } if (newSortColumn && lastSortedOnColumn != null) { if (!String.IsNullOrEmpty(this.ColumnHeaderNotSortedTemplate)) { lastSortedOnColumn.HeaderTemplate = this.TryFindResource(ColumnHeaderNotSortedTemplate) as DataTemplate; } else { lastSortedOnColumn.HeaderTemplate = null; } } lastSortedOnColumn = sortableGridViewColumn; } } }