title: ASP.NET Web Method that accepts a List<CustomObject> is failing with "Web Service method name is not valid."
body: <p>I want to create a web method that accepts a List of custom objects (passed in via jQuery/JSON). </p>
  
  <p>When I run the website locally everything seems to work.  jQuery and ASP.NET and everyone is happy.  But when I put it on one of our servers it blows up.  jQuery gets a 500 error after the ajax request with the response being:</p>
  
  <blockquote>
    <p>System.InvalidOperationException: EditCustomObjects Web Service method name is not valid.</p>
  </blockquote>
  
  <p>Here's the web service method:</p>
  
  <pre><code>[WebMethod]
  public void EditCustomObjects(int ID, List&lt;CustomObject&gt; CustomObjectList)
  {
    // Code here
  }
  </code></pre>
  
  <p>And my jQuery code (which I don't think matters, since the error seems to be happening on the web service level):</p>
  
  <pre><code>var data = JSON.stringify({
    ID: id,
    CustomObjectList: customObjectList
  });
  
  $.ajax({
    type: "POST",
    url: "/manageobjects.asmx/EditCustomObjects",
    data: data,
    contentType: "application/json; charset=utf-8",
    async: false,
    dataType: "json",
    success: function(xml, ajaxStatus) {
      // stuff here
    }
  });
  </code></pre>
  
  <p>The customObjectList is initialized like so:</p>
  
  <pre><code>var customObjectList = [];
  </code></pre>
  
  <p>And I add items to it like so (via a loop):</p>
  
  <pre><code>var itemObject = { 
    ObjectTitle = objectTitle,
    ObjectDescription = objectDescription,
    ObjectValue = objectValue
  }
  
  customObjectList.push(itemObject);
  </code></pre>
  
  <p>So, am I doing anything wrong here?  Is there a better way of passing an array of data from jQuery to an ASP.NET web service method?  Is there a way to resolve the "Web Service method name is not valid." error?</p>
  
  <p>FYI, I am running .NET 2.0 on a Windows Server 2003 machine, and I got the code for the above from this site: <a href="http://elegantcode.com/2009/02/21/javascript-arrays-via-jquery-ajax-to-an-aspnet-webmethod/" rel="nofollow noreferrer">http://elegantcode.com/2009/02/21/javascript-arrays-via-jquery-ajax-to-an-aspnet-webmethod/</a></p>
  
  <p>EDIT: Someone requested some more info on the web service, I'd rather not provide the whole class but here is a bit more that may help:</p>
  
  <pre><code>[WebService(Namespace = "http://tempuri.org/")]
  [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
  [ScriptService] 
  public class ManageObjects : Custom.Web.UI.Services.Service 
  {
  }
  </code></pre>
  
  <p>Bara</p>