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Can i not show Response.write on a page?

Posted By:      Posted Date: September 25, 2010    Points: 0   Category :ASP.Net


I'm doing something for  paypal.

So i have my values for paypal PDT like this:

 Public Function PayPalPostForm() As String
        Dim s = Request.QueryString("tx")
        Dim PostUrl As String = "https://www.sandbox.paypal.com/cgi-bin/webscr"
        Dim Cmd As String = "_notify-synch"
        Dim Method As String = "post"
        Dim submitvalue As String = "PDT"
        Dim tx As String = s
        'my sandbox merchand identity token 
        Dim at As String = "J9Z11-6776aOBoIOMqiWDEFGUmonSwyqM2QiGriz7Rn-f7Y_z0KEQkUvLSa"

        'Create the Form to write to the page with PayPal parameters      
        Dim ppForm As New StringBuilder()
        ppForm.AppendFormat("<Form name='frmPP' id='frmPP' action='{0}' method='{1}'>", PostUrl, Method)        
        ppForm.AppendFormat("<input type='hidden' name='cmd' value='{0}'>", Cmd)
        ppForm.AppendFormat("<input type='hidden' name='tx' value='{0}'>", tx)
        Return ppForm.ToString()
    End Function

and then i will send the form to paypal and ge

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