How to read a SOAP xml file using asp.net? - asp.net

Question

I was trying to read an xml file and loads it in an xml document. However an error prompted me that the "Data at the root level is invalid. Line 1, position 1." I need to retrieve the message from the xml file.
Below is my code:
Dim xmlPath as String = Server.MapPath("~/res.xml")
Dim xmlDoc as New XmlDocument
Dim fs As New FileStream(xmlPath, FileMode.Open, FileAccess.Read)
xmlDoc.Load(fs)
Here is the content of the xml file:
--uuid:8asdsddf-sdf24-asdasd-3121-asdasdasdasd
Content-Type: application/xop+xml; charset=UTF-8; type="text/xml";
Content-Transfer-Encoding: binary
Content-ID: <root.message#apache.org>
<SOAP-ENV:Envelope xmlns:SOAP-
ENV="http://schemas.xmlsoap.org/soap/envelope/"><SOAP-ENV:Header></SOAP-
ENV:Header><SOAP-ENV:Body><Status xmlns=""><Message>Success: 12345</Message></Status></SOAP-ENV:Body></SOAP-
ENV:Envelope>
--uuid:8asdsddf-sdf24-asdasd-3121-asdasdasdasd--
What should be the reason why the error prompted?

Answer 1

The following code should remove all the non xml string from file
Imports System.IO
Imports System.Xml
Module Module1
Const FILENAME As String = "c:\temp\test.xml"
Sub Main()
'Dim xmlPath As String = Server.MapPath("~/res.xml")
Dim xmlDoc As New XmlDocument
Dim reader As New StreamReader(FILENAME)
Dim xml As String = ""
Dim inputLine As String = ""
Dim foundTag = False
While (Not reader.EndOfStream)
inputLine = reader.ReadLine
If foundTag = False Then
If Not inputLine.StartsWith("<") Then Continue While
foundTag = True
End If
If Not inputLine.StartsWith("--") Then
xml = xml & inputLine
End If
End While
xmlDoc.LoadXml(xml)
End Sub
End Module