I'm new on this hread but I can tell you taht theframework will prefix the name
of your control with an id it geneartes - usually ctl + a number.

So request.Form("LoginName") won't work  .... it has to be
Request.Form("ctl5_LoginName");

You can get a collection of form  members and loop through them ... thats in ms
help ....

In VB ...

Dim loop1 As Integer
Dim arr1() As String
Dim coll As NameValueCollection

' Load Form variables into NameValueCollection variable.
coll=Request.Form

' Get names of all forms into a string array.
arr1 = coll.AllKeys
For loop1 = 0 To arr1.GetUpperBound(0)
Response.Write("Form: " & arr1(loop1) & "<br>")
Next loop1