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c# client for SOAP::Lite web service

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  • billgerba
    I ve seen topics somewhat related to this, and am getting nervous because nobody seems to have a good answer. My company has developed a series of SOAP
    Message 1 of 1 , Dec 8, 2006
      I've seen topics somewhat related to this, and am getting nervous
      because nobody seems to have a good answer. My company has developed
      a series of SOAP services using SOAP::Lite on Linux. We've
      successfully had other Perl, PHP, Ruby and Java clients access the
      services, but no luck with .NET yet. We've created a simple service
      to try and identify the problem, which hopefully somebody will be able
      to help with.

      I consume the following document literal (wrapped) WSDL file:
      generate a dll using wsdl.exe and csc. You can re-generate it if you
      like, but the method call for return_chars() looks like this:

      public string
      )] return_chars return_chars1) {
      object[] results = this.Invoke("return_chars", new object[] {
      return ((string)(results[0]));

      We then compile a C# client against Demo.dll (the Security section is
      optional, since we've disabled the authentication to try and work this
      bug out):

      using System;
      using System.Diagnostics;
      using System.Net;
      using System.Web.Services;
      using System.Web.Services.Protocols;
      using System.Xml.Serialization;

      class Example1 {

      public static void Main(string[] args) {
      // Set parameters
      return_chars x = new return_chars();
      x.input_string = "NET SOAP test string";
      x.second_string = "";

      //Security auth_info = new Security();
      //auth_info.Account = "ACCOUNTNAME";
      //auth_info.Username = "username";
      //auth_info.Password = "password";

      Demo myDemo = new Demo();
      //myDemo.SecurityValue = auth_info;
      Console.WriteLine("Got return value: " + myDemo.return_chars(x));

      When we execute the client, it hits the server, which returns back
      valid-looking XML, however myDemo.return_chars(x) is null. We used
      .NET Webservice Studio to examine the response content. This is what
      the server is sending back:

      ResponseCode: 200 (OK)
      X-Cache:MISS from alpha.wirespring.net
      Date:Fri, 08 Dec 2006 18:58:43 GMT
      Expires:Fri, 08 Dec 2006 18:58:43 GMT
      Server:Apache/1.3.34 (Unix) mod_perl/1.29

      <?xml version="1.0" encoding="utf-16"?>
      <soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      <s-gensym18 xsi:type="xsd:string">N.E.T. .S.O.A.P .t.e.s.t.

      The visual tool in .NET WebService Studio also indicates that the
      result string is null. Oddly, though, when I use the Java-based
      StrikeIron Web Service Analyzer, I get the exact same return content,
      but it does correctly grab the return string.

      At this point we're about out of ideas, so I'd appreciate any insight
      that you may have!
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