Example #1
0
        void thumb_DragDelta(object sender, DragDeltaEventArgs e)
        {
            mousePosition.Offset(e.HorizontalChange, e.VerticalChange);
            IInputElement inputElt = dataGrid.InputHitTest(mousePosition);
            var           tb       = inputElt as TextBlock;

            if (tb == null)
            {
                return;
            }
            Point bottomRight = dataGrid.PointFromScreen(tb.PointToScreen(new Point(tb.ActualWidth + 1, tb.ActualHeight + 1)));

            Rect = new Rect(rect.TopLeft, bottomRight);
        }