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HomeHomeDNN Open Source...DNN Open Source...Provider and Extension ForumsProvider and Extension ForumsClientAPIClientAPI"Supports Partial Rendering" causes response.write not to work?"Supports Partial Rendering" causes response.write not to work?
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4/16/2010 2:31 PM
 
Kyle Parker

Joined: 12/1/2003
Posts: 197

Why would marking a module as "Supports Partial Rendering" cause the following code to not work?  Also, is there a better method to execute is code?

(This code posts to a credit card gateway for PCI compliance.)

Protected Sub btnSubmit_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnSubmit.Click

Dim FormHTML As StringBuilder = New StringBuilder
Dim HTML As StringBuilder = New StringBuilder

HTML.Append("<script type=""text/javascript"">")
HTML.Append("var newWin = window.open("""", ""NewWin"", ""width=675,height=600,scrollbars=1,resizable=1"");")
HTML.Append(ControlChars.CrLf)
HTML.Append("newWin.document.open();")
HTML.Append(ControlChars.CrLf)
HTML.Append("newWin.document.write('")

FormHTML.Append("<html><head><title>Test</title></head><body>")
FormHTML.Append("<form name=""AutoForm"" method=""post"" action=""https://test1.xxxxx.com/xxxxx/main.aspx"">")
FormHTML.Append("<input type=""hidden"" name=""TransactionAmount"" value=""1.00"" \/>")
FormHTML.Append("<input type=""hidden"" name=""ECOMRequestID"" value=""{xxxxx-xxx-xxxx-xxxx-xxxxxxxxxxxx}"" \/>")
FormHTML.Append("<input type=""hidden"" name=""PurchaseIdentifier1"" value=""ORDER-0006"" \/>")
FormHTML.Append("<input type=""hidden"" name=""PurchaseIdentifier2"" value=""Customer #6"" \/>")

FormHTML.Append("<\/form>")
FormHTML.Append("<SCRIPT type=""text/javascript"">document.AutoForm.submit();<\/SCRIPT>")
FormHTML.Append("<\/body><\/html>")

HTML.Append(FormHTML.ToString)
HTML.Append("');")
HTML.Append(ControlChars.CrLf)
HTML.Append("newWin.document.close();")
HTML.Append(ControlChars.CrLf)
HTML.Append("</SCRIPT>")

Response.Write(HTML.ToString)

End Sub
 
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4/16/2010 4:08 PM
 
Jon Henning

www.codeendeavors.com
Joined: 3/20/2003
Posts: 1767

Regardless of partial rendering, I am not sure I understand this code.  ASP.NET has a single form rendered per page as a limitation.  You seem to want a click handler of a button (within a form) to on postback to itself write out a completly different html, body, and form tag...  This seems a bit off to me.

Throwing partial rendering into the mix now says that an AJAX call will be made and code that ASP.NET does not know about (due to using response.write) will be parsed and somehow inserted back into the location on the page where it would have been for a normal postback. 

Seems like the best option for you is to render your script to the client within your module.  Add a click handler in the javascript, that executes the script.
 
New Post
4/16/2010 6:15 PM
 
Kyle Parker

Joined: 12/1/2003
Posts: 197

Jon, thanks for your reply and advice.

I'm needing to do a "post" to the gateway and pass some hidden fields.  I'm really not sure how to do this.

Can you recommend any examples?

Thanks for your help and all your work on the DNN project.
 
New Post
4/16/2010 7:39 PM
 
Oscar Martin

www.bestwebsites.co.nz
Joined: 3/24/2004
Posts: 419

That sounds like an over-complicated method.  If you need to force a POST to another url, you can simply use the WebClient class to do this.

http://msdn.microsoft.com/en-us/library/system.net.webclient%28VS.80%29.aspx

And if you do for some reason need to stick with your JS method, you can fix the partial rendering problem by checking the http method:

if (Request.HttpMethod == "GET")

// now you can safely use response.write()

Oscar

 

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New Post
4/20/2010 2:20 PM
 
Kyle Parker

Joined: 12/1/2003
Posts: 197

I'm really not having much luck getting this to work.

The gateway requires that I "POST" the form to them passing the "HIDDEN" fields.  I've done a lot of searching and trying things out, but just can't seem to get it to work.  It can't be that hard to do.

Can some one help me ?
 
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