protected override void OnDrop(DragEventArgs e)
{
CategoryItemViewModel dragSource;
CategoryItemViewModel dropTarget;
if (IsValidDropTarget(e, out dragSource, out dropTarget))
{
switch (GetDropAction(e, dropTarget))
{
case DropActionEnum.InsertBefore:
ViewModelLocator.Locator.DragDrop.InsertBefore(dragSource, dropTarget);
break;
case DropActionEnum.Add:
ViewModelLocator.Locator.DragDrop.Add(dragSource, dropTarget);
break;
case DropActionEnum.InsertAfter:
ViewModelLocator.Locator.DragDrop.InsertAfter(dragSource, dropTarget);
break;
}
}
DropAction = DropActionEnum.None;
e.Handled = true;
}
protected override void OnDragOver(DragEventArgs e)
{
CategoryItemViewModel dragSource;
CategoryItemViewModel dropTarget;
if (IsValidDropTarget(e, out dragSource, out dropTarget))
{
DropAction = GetDropAction(e, dropTarget);
}
e.Handled = true;
}
protected override void OnDragLeave(DragEventArgs e)
{
DropAction = DropActionEnum.None;
e.Handled = true;
}