private void Step_Unloaded(object sender, RoutedEventArgs e)
{
AdornerLayer layer = AdornerLayer.GetAdornerLayer(this);
if (layer != null)
{
if (this.MoveChrome != null)
{
layer.Remove(this.MoveChrome);
this.MoveChrome = null;
}
if (this.ResizedChrome != null)
{
layer.Remove(this.ResizedChrome);
this.ResizedChrome = null;
}
}
}
private void ShowMovedChrome()
{
if (this.MoveChrome == null)
{
AdornerLayer layer = AdornerLayer.GetAdornerLayer(this);
if (layer != null)
{
this.MoveChrome = new StepMoveAdorner(this);
layer.Add(this.MoveChrome);
if (this.IsMoved)
{
this.MoveChrome.Visibility = System.Windows.Visibility.Visible;
}
else
{
this.MoveChrome.Visibility = System.Windows.Visibility.Collapsed;
}
}
}
else
{
this.MoveChrome.Visibility = System.Windows.Visibility.Visible;
}
}