reading and writing xml problem

[drew10]

I have a streamreader that reads xml from a HttpWebResponse.
I use a streamwriter to create and write xml to a new file. My problem occurs when I try to load the new xml document that I create. I get an error message saying "This is an unexpected XML declaration. Line 21, position 3." because when the file is created, the xml is not written until line 21. If I remove all the space above the xml in the file, it loads just fine. Does anyone know what I am doing wrong? Here's my code:

        Dim writer As StreamWriter


        Dim req As HttpWebRequest = WebRequest.Create(url)        
        req.Method = "Post"
        req.ContentType = "application/x-[URL unfurl="true"]www-form-urlencoded"[/URL]

        Try
            writer = New StreamWriter(req.GetRequestStream())
            writer.Write(strPost)
        Finally
            writer.Close()
        End Try

        '--------------- Get the response as xml ---------------------------
        Dim resp As HttpWebResponse = req.GetResponse()

        Dim sr As New StreamReader(resp.GetResponseStream())

        
        result = Trim(sr.ReadToEnd)

        '--------------- Write XML to file ----------------------------------
        Dim sw As New StreamWriter(path)
        sw.Write(result)
        sw.Close()

 

[link9]

what's this line in your try?

writer.Write(strPost)


where is strPost declared, and what does it contain?

 

[drew10]

dim strPost as Object = Request.Form

It contains a NameValueCollection that looks like a querystring.

What it does is send the contents of the form from another page to a given path's httpwebrequest.

 

[drew10]

Instead of saving the xml as a file and then loading the file, I tried this, but it gave me the same error:

Dim xmlDox as XmlDocument = New XmlDocument()
xmlDoc.LoadXml(result)

 

[drew10]

I've narrowed the problem down. The extra space in the xml document comes from the httpWebResponse. I have tried a replace of chr(10) which is linefeed, but it adds boxy characters that are still seen as new lines with:
result.replace(chr(10), string.empty) or result.replace(vblf, "&quot.

The entire problem comes from several linefeeds before the xml. The httpWebResponse comes from another company, so I cannot change it. Any ideas are greatly appreciated!

-drew

 

[link9]

try with chr(13)'s as well.

If that doesn't work, then I would suggest starting back over on that file, and reading each line. If it's empty, then discard it... if it's not, then write it to a new file, which will become the final file w/o the empty lines.

I think the chr(13) should work, though.

 

[drew10]

Unfortunately, chr(13) does not work. It does not remove anything from the string. When I open the xml document in notepad, all the text appears in the middle of the page, and if I move the cursor up, it moves line by line.

I am going to try to read the document line by line and write to a new document if the line is not blank.