Hi ,
       I  have a user control using custom class  as property,

Custom Class,
    public class myMarginBound : System.Drawing.Printing.Margins
    {
        public myMarginBound()
        {

        }
    }

User control,
    public class UserControl1 : System.Windows.Forms.UserControl
    {
                     ....................

        public myMarginBound MBound

        {
            set
            {

            }
            get
            {
                return new myMarginBound ();
            }
        }
                     }

Windows App,

              Designer generate
                      this.userControl11.MBound =
((WindowsControlLibrary1.myMarginBound)(new
System.Drawing.Printing.Margins(100, 100, 100, 100)));

It throw  invalidCastException at runtime,

Is it neccecery to write a custom CodeDomSerializer to generate
something like
this.userControl11.MBound = new myMarginBound()
?

Ben