跨网页公布

            //将PreviousPage转换成与来源网页相同的强类型
            if (PreviousPage != null)
            {
                if (PreviousPage.IsCrossPagePostBack)
                {
                    IsCrossPageSource sourcePage =
                        (IsCrossPageSource)PreviousPage;
                    Label1.Text = "您输入的名字是：" + sourcePage.getUserName;
                }
            }