public static void OnColumnsFilterChanged(DependencyObject sender, DependencyPropertyChangedEventArgs args)
{
ListViewEx lv = (ListViewEx)sender;
if (lv.ColumnFilters != null)
{
ListViewColumnUtils.UpdateFilterPanel(lv, lv.Columns, lv.ColumnFilters);
}
}
public static void OnViewModeChanged(DependencyObject sender, DependencyPropertyChangedEventArgs args)
{
ListViewEx fl = (ListViewEx)sender;
if (args.NewValue == args.OldValue)
{
return;
}
//Debug.WriteLine(args.NewValue);
ViewBase view = fl.View;
if (args.Property.Equals(ViewModeProperty))
{
string viewMode = (string)args.NewValue;
if (String.IsNullOrEmpty(viewMode))
{
return;
}
string viewResourceName = viewMode + "View";
view = (ViewBase)(fl.TryFindResource(viewResourceName));
if (view != null)
{
fl.View = view;
}
else
{
Debug.WriteLine(String.Format("ListViewEx - {0} not found.", viewResourceName));
}
}
if (fl.View != null)
{
//Only update columns if View is updated
if (args.Property.Equals(ColumnsProperty) || args.Property.Equals(ViewModeProperty))
{
ListViewColumnUtils.UpdateColumn(fl, fl.Columns);
fl.Dispatcher.Invoke(() =>
{
ListViewColumnUtils.UpdateFilterPanel(fl, fl.Columns, fl.ColumnFilters);
},
System.Windows.Threading.DispatcherPriority.Input);
}
////always update sort column
ColumnInfo sortColumn = fl.Columns.Find(fl.SortBy);
if (sortColumn != null)
{
ListViewColumnUtils.UpdateSortSymbol(fl, sortColumn, fl.SortDirection);
}
}
else
{
Debug.WriteLine(String.Format("ListViewEx - No view defined."));
}
}
void System.Windows.Markup.IComponentConnector.Connect(int connectionId, object target)
{
switch (connectionId)
{
case 1:
this.ProcessedItems = ((FileExplorer.WPF.UserControls.ListViewEx)(target));
return;
case 2:
this.Sidebar = ((System.Windows.Controls.ContentControl)(target));
return;
}
this._contentLoaded = true;
}
public static void OnColumnsVisibilityChanged(DependencyObject sender, DependencyPropertyChangedEventArgs args)
{
ListViewEx lv = (ListViewEx)sender;
if (args.OldValue != args.NewValue)
{
if ((Visibility)args.NewValue == Visibility.Visible)
{
lv.AddHandler(GridViewColumnHeader.ClickEvent, (RoutedEventHandler)lv.columnClickedHandler);
}
else
{
lv.RemoveHandler(GridViewColumnHeader.ClickEvent, (RoutedEventHandler)lv.columnClickedHandler);
}
}
}
public static void OnSelectionModeExChanged(DependencyObject sender, DependencyPropertyChangedEventArgs args)
{
ListViewEx fl = (ListViewEx)sender;
SelectionModeEx selMode = (SelectionModeEx)args.NewValue;
switch (selMode)
{
case SelectionModeEx.Single:
case SelectionModeEx.Multiple:
case SelectionModeEx.Extended:
SelectionHelper.SetEnableSelection(fl, false);
fl.SetValue(SelectionModeProperty, (SelectionMode)(int)selMode);
break;
case SelectionModeEx.SelectionHelper:
SelectionHelper.SetEnableSelection(fl, true);
break;
}
}
/// <summary>
/// If a filter is checked or unchecked, raise FilterChangedEvent.
/// </summary>
/// <param name="listView"></param>
public static void RegisterFilterEvent(ListViewEx listView)
{
var p = UITools.FindVisualChild <GridViewHeaderRowPresenter>(listView);
if (p != null)
{
var handler = (RoutedEventHandler)((o, e) =>
{
ColumnFilter filter = (e.OriginalSource as MenuItem).DataContext as ColumnFilter;
if (filter != null)
{
ColumnInfo colInfo = ((VisualTreeHelper.GetParent(e.OriginalSource as DependencyObject))
as StackPanel).DataContext as ColumnInfo;
listView.RaiseEvent(new FilterChangedEventArgs(e.Source)
{
ColumnInfo = colInfo, Filter = filter
});
}
});
p.AddHandler(MenuItem.CheckedEvent, handler);
p.AddHandler(MenuItem.UncheckedEvent, handler);
}
}
/// <summary>
/// Apply header template to GridViewColumns depending if it's selected and ascending.
/// </summary>
public static void UpdateSortSymbol(ListView listView, ColumnInfo sortCol,
ListSortDirection sortDirection = ListSortDirection.Ascending)
{
GridViewColumnCollection columns = getColumnCols(listView);
if (columns == null)
{
return;
}
GridViewHeaderRowPresenter presenter = UITools.FindVisualChild <GridViewHeaderRowPresenter>(listView);
if (presenter != null)
{
GridViewColumnHeader foundHeader = findColumnHeader(presenter, sortCol);
IEnumerable <GridViewColumnHeader> headers = UITools.FindAllVisualChildren <GridViewColumnHeader>(presenter);
foreach (var curHeader in headers)
{
if (curHeader.Equals(foundHeader))
{
if (sortDirection == ListSortDirection.Ascending)
{
ListViewEx.SetColumnHeaderSortDirection(curHeader, -1);
}
else
{
ListViewEx.SetColumnHeaderSortDirection(curHeader, 1);
}
}
else
{
ListViewEx.SetColumnHeaderSortDirection(curHeader, 0);
}
}
}
}
