Controlling site from Master Page?

[blakemckenna]

I have a web app that contains 1 master page and a bunch of content pages. One of the content pages is "SysLogin.aspx", which is called from a menu option from the Master Page. When the page is called, the user logs in. However, there is a "Login" button. In the code behind of the Login_Click() event, the the user successfully logs in, they are supposed to be redirected to a "Default.aspx" page and the Main Menu is enabled. Problem is, the app hangs on the redirect statement and it goes to the Catch portion of the Try Catch construct. For some reason, when I examine the exception, it only says "Unable to evaluate expression". Below is my code. My question, other than what I've stated is...should your application be controlled using code in the Master Page or in child pages. My code from the "SysLogin.aspx" is below. It hangs on the highlighted line of code.

    Private Sub btnLogin_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnLogin.Click
        Try
            If txtLoginID.Text.Length > 0 Then
                If txtPassword.Text.Length > 0 Then
                    If dbIO.ValidateUser(txtLoginID.Text, txtPassword.Text) Then
                        Session("LoggedIn") = txtLoginID.Text
                        Session("loggedInOk") = "Y"
                        Response.Redirect("~/Admin/Default.aspx")                    
                    End If
                End If
            End If

        Catch ex As Exception
            Master.errMsg = dbIO.DisplayError("btnLogin_Click()", "SysLogin", ex.Message)
        End Try
    End Sub

[gep13]

Hello,

Are you getting a ThreadAbortedException?

If so, check out the documentation here:

http://msdn.microsoft.com/en-us/libr...(v=vs.80).aspx

Calling Redirect raises this exception, but you can use the second parameter to Response.Redirect to "handle" this.

Gary

[blakemckenna]

Gary,

I remember seeing an error message similar to what you mentioned. However, I looked at the link you provided and placed the exact code in my page. Now I'm getting an "Object reference not set to an instance of an object" error on the highlighted line of code. Here's my code now!

Private Sub btnLogin_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnLogin.Click
        Try

            If txtLoginID.Text.Length > 0 Then
                If txtPassword.Text.Length > 0 Then
                    If dbIO.ValidateUser(txtLoginID.Text, txtPassword.Text) Then
                        If Response.IsClientConnected Then
                            Session("LoggedIn") = txtLoginID.Text
                            Session("loggedInOk") = "Y"
                            Dim instance As HttpResponse
                            Dim url As String = "~/Admin/Default.asxp"
                            Dim endResponse As Boolean

                            instance.Redirect(url, endResponse)                       
                        Else
                            Response.End()
                        End If
                    End If
                End If
            End If

        Catch ex As Exception
            Master.errMsg = dbIO.DisplayError("btnLogin_Click()", "SysLogin", ex.Message)
        End Try
End Sub

[gep13]

Hello,

That particular code is just dummy code, none of the variables have been instantiated, look further down the page for actual example.

Gary