Error executing child request in Server.Transfer

See more:

C#2.0

C#

ASP.NET

Hi,

I have two folder in my ASP.net web project, each one has some pages inside and has its own master page.

I want to change master page programmatically

one folder called: Members and have MemberComments.aspx page which has MemberMaster.master
I write that code to change its master page inside it:

protected void Page_PreInit(object sender, EventArgs e)
    {
        if (Request.Url.LocalPath.Contains("EditTopics"))
        {
            this.MasterPageFile = "~/Admins/AdminMaster.master";
        }
    }

another folder called Admins and have EditTopics.aspx page
I write that code to go to MemberComments.aspx page:

Server.Transfer("~/Members/MemberComments.aspx);

but it give me error that:

Error executing child request