private void OnLostFocus(object sender, RoutedEventArgs args)
{
MyParent.PreviewMouseLeftButtonDown -= OnPreviewParentMouseDown;
PreviewKeyDown -= OnPreviewKeyDown;
_adorner.ResizeStarted -= OnResizeStarted;
_adorner.ResizeCompleted -= OnResizeCompleted;
var adornerLayer = AdornerLayer.GetAdornerLayer(MyContent);
adornerLayer.Remove(_adorner);
_adorner = null;
}
private void OnGotFocus(object sender, RoutedEventArgs args)
{
MyParent.PreviewMouseLeftButtonDown += OnPreviewParentMouseDown;
PreviewKeyDown += OnPreviewKeyDown;
_adorner = new ResizingAdorner(MyContent);
_adorner.ResizeStarted += OnResizeStarted;
_adorner.ResizeCompleted += OnResizeCompleted;
var adornerLayer = AdornerLayer.GetAdornerLayer(MyContent);
adornerLayer.Add(_adorner);
}