Dim user As MembershipUser = Membership.GetUser(us

sstuber · May 8th, 2008, 08:29 AM

My error says: "ArgumentNullException was unhandled by user code. The value cannot be null. Parameter name: userName"

Here is the code (VB version of page 177, bottom most block):

Code:

' retrieve the username from the querystring
            userName = Me.Request.QueryString("UserName")

            lblRolesFeedbackOK.Visible = False
            lblProfileFeedbackOK.Visible = False

            If Not Me.IsPostBack Then
                UserProfile1.Username = userName

                ' show the user's details
                Dim user As MembershipUser = Membership.GetUser(userName)

Any ideas?

Lee Dumond · May 8th, 2008, 02:20 PM

When you navigate to this page, is the UserName in fact on the querystring? (...aspx?UserName=blahblah)

If it is not, then Me.Request.QueryString("Username") would return a null value, which would cause Membership.GetUser to throw an ArgumentNullException.

sstuber · May 8th, 2008, 03:42 PM

OK. Great. I just tried navigating from a different page. I didn't realize it was dependant on where I was navigating from. That makes total sense now.
Thanks for the help!