private void DragObject_MouseUp(object sender, MouseEventArgs e)
{
if (this._isDragging)
{
IDraggable millerItem = (sender as Control).FindParentType <IDraggable>();
if (millerItem != null)
{
this._isDragging = false;
this.Cursor = Cursors.Default;
millerItem.UnHighlight();
}
}
}