Esempio n. 1
0
 private void DragLeave(object sender, DragEventArgs e)
 {
     if (sender is FrameworkElement fe)
     {
         DropBinding.ClearAdorners();
     }
 }
Esempio n. 2
0
            private void Drop(object sender, DragEventArgs e)
            {
                if (sender is FrameworkElement fe)
                {
                    DropBinding.ClearAdorners();
                    var draggedItem = e.Data.GetData(instanceType);
                    if (draggedItem == null)
                    {
                        return;
                    }
                    var target = fe.DataContext;
                    if (target == null || !items.Contains(target))
                    {
                        return;
                    }
                    if (items.Contains(draggedItem))
                    {
                        items.Remove(draggedItem);
                    }
                    e.Effects = DragDropEffects.Copy;

                    var index = items.IndexOf(target) + (DropTypeByPosition(e, fe) == DropAdornerKind.Bottom ? 1 : 0);
                    items.Insert(index, draggedItem);
                }
            }
Esempio n. 3
0
 private void DragOver(object sender, DragEventArgs e)
 {
     if (sender is FrameworkElement fe)
     {
         DropBinding.ClearAdorners();
         if (e.Data.GetData(instanceType) == null)
         {
             e.Effects = DragDropEffects.None;
             e.Handled = true;
             return;
         }
         ;
         var dropAdornerKind = DropTypeByPosition(e, fe);
         fe.Adorn(dropAdornerKind);
         e.Effects = DragDropEffects.Copy;
         e.Handled = true;
     }
 }