提示未登录，点确认，跳到登陆页

ClientScript.RegisterClientScriptBlock(GetType(), "", "<script>alert('你还没有登录!');window.location='login.aspx'</script& gt;");

 

跳转到根目录，用下面的语句：

string scriptStr = "javascript:top.location='Login.aspx'";

        this.ClientScript.RegisterStartupScript(this.GetType(), "exit", scriptStr, true);