Exemplo n.º 1
0
 protected override void Invoke(object parameter)
 {
     if (IsChecked)
     {
         if (EnableSelectedCache)
         {
             ItemsSelected(TargetElement.Items, true);
             foreach (var item in TargetElement.SelectedItems)
             {
                 _cache.Add(item);
             }
             TargetElement.SetValue(CacheSelectedItemsProperty, _cache.ToList());
         }
         else
         {
             TargetElement.SelectAll();
         }
     }
     else
     {
         TargetElement.UnselectAll();
         if (EnableSelectedCache)
         {
             foreach (var item in TargetElement.Items)
             {
                 _cache.Remove(item);
             }
             ItemsSelected(TargetElement.Items, false);
             TargetElement.SetValue(CacheSelectedItemsProperty, _cache.ToList());
         }
         else
         {
             TargetElement.UnselectAll();
         }
     }
     AssociatedObject.SetValue(SelectedItemsCountProperty, _cache.Count);
 }