Example Code
<obshow:Show id="Show1" runat="server" ShowType="manual" ManualChanger="true"> <Changer Width="360" Height="30" /> <Panels> <obshow:Panel> ... Panel Content here ...
VS.NET
Show1.Changer.Width = 360
Show1.Changer.Height = 30
C#
Show1.Changer.Width = 360;
Show1.Changer.Height = 30;