1.Add a UserControl. 2.Drag a TableLayoutPanel from the Toolbox and drop it onto the UserControl. Set its Dock property to Fill. 3.Add 3 columns to the TableLayoutPanel: Column1 50% Column2 20% Column3 30% 4.Add 3 rows to the TableLayoutPanel: Row1 Absolute 20 Row2 Percent 100% Row3 Absolute 30 5.Add a RadTrackBar to the second row in the TableLayoutPanel and set its Dock property to Fill. Change the ColumnSpan property to 3. 6.Set the RadTrackBar.AutoSize property to false. 7.Open the designer and resize the user control on a way to make its size very small. As a result Visual Studio hangs.