protected override void OnMouseUp(MouseEventArgs e)
{
base.OnMouseClick(e);
//get mouseE before reset isMouseDown and isDragging
var mouseE = CreateMouseEventArg(e);
this.isMouseDown = this.isDragging = false;
this._htmlInputEventAdapter.MouseUp(mouseE);
PaintMe(null);
this.isMouseDown = this.isDragging = false;
// this.Invalidate();
}
LayoutFarm.UI.UIMouseEventArgs CreateMouseEventArg(MouseEventArgs e)