// helper method to reset the state of the rubberband adorner
private void DisposeRubberBand()
{
currentpoint = new Point(0, 0);
startpoint = new Point(0, 0);
AdornedElement.ReleaseMouseCapture();
InvalidateVisual();
flag = false;
mouseDownRowCanvas = false;
}
private void AdornedElement_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
if (dragging)
{
dragging = false;
AdornedElement.ReleaseMouseCapture();
e.Handled = true;
OnDragEnd?.Invoke(this, new EventArgs());
}
}
private void DisposeRubberBand()
{
AdornedElement.ReleaseMouseCapture();
InvalidateVisual();
}