private void ControlDragEnter([NotNull] object sender, [NotNull] DragEventArgs e)
{
Debug.ArgumentNotNull(sender, nameof(sender));
Debug.ArgumentNotNull(e, nameof(e));
if (!Control.AllowDrop)
{
return;
}
_adorner = new LineAdorner(Control);
_adorner.SetValue(RenderOptions.EdgeModeProperty, EdgeMode.Aliased);
var adornerLayer = AdornerLayer.GetAdornerLayer(Control);
adornerLayer.Add(_adorner);
SetPosition(e);
e.Handled = true;
}
private void DragEnter([NotNull] object sender, [NotNull] DragEventArgs e)
{
Debug.ArgumentNotNull(sender, nameof(sender));
Debug.ArgumentNotNull(e, nameof(e));
if (!ListView.AllowDrop)
{
return;
}
if (Line == null)
{
Line = new LineAdorner(ListView);
Line.SetValue(RenderOptions.EdgeModeProperty, EdgeMode.Aliased);
var adornerLayer = AdornerLayer.GetAdornerLayer(ListView);
if (adornerLayer != null)
{
adornerLayer.Add(Line);
}
}
UpdatePosition(e);
}
