Hallo,
ich habe folgenden Code:

Code :

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Private Function Request2HP() As Boolean         Try             Dim request As WebRequest = WebRequest.Create(hpServer)             request.Method = "POST"             Dim byteArray As Byte() = GetBytesFromFile(XMLFile2HP)             request.ContentType = "application/x-www-form-urlencoded;charset=UTF-8"             request.ContentLength = byteArray.Length             Dim dataStream As Stream = request.GetRequestStream()             dataStream.Write(byteArray, 0, byteArray.Length)             dataStream.Close()             Dim response As WebResponse = request.GetResponse()             Console.WriteLine(CType(response, HttpWebResponse).StatusDescription)             dataStream = response.GetResponseStream()             Dim reader As New StreamReader(dataStream)             ResponseData = reader.ReadToEnd()             reader.Close()             dataStream.Close()             response.Close()             Return True         Catch e As Exception             Console.WriteLine(e.Message)             Return False         End Try     End Function

Die Funktion soll an einen Server (hpServer) eine XML Datei (XMLFile2HP) senden, vom Server sollte dann ein Response kommen, allerdings wird mir bei der Zeile "Dim response As WebResponse = request.GetResponse()" der Fehler "412 Precondition failed" ausgegeben. Weiß jemand woran das liegt?
Danke für die Hilfe.
Gruß
Ralf

Das könnte helfen:
http://www.checkupdown.com/status/E412.html