System.InvalidOperationException Every Time I try a particular Web Reference

System.InvalidOperationException Every Time I try a particular Web Reference

• mix600

  Hi,
  Thanks for unearthing the issue. We have already fixed this issue and it no longer repros on our internal builds. You won't hit it again on VS2005.
  
  Thanks.
  
  

• amckern

  Hi Jaiprakash,
  
  Your code worked for me as well....
  
  I have spoken and worked with Autodesk, and the problem has been nailed down.  It seems the behavior I am seeing is produced only when a function uses a Enumeration of XML Attributes . Is there a known issue with J# not being able to handle Enumerations of XML Attributes   And if so, is this problem resolved (or will it be resolved) in .net 2005  
  
  If you use the following class in a C# web services project, and then try to instantiate that class.. it should fail.  It will give you an identitcal error as the one that I have been getting before.
  
  BTW... If you need to get ahold of me this evening (it appears as though you are on the forums about 20.30 PST) Please contact me at my email anipirakis <AT> tmail.com .  I can answer any questions you may have quicker that way.
  
  Here is the code:
  
  

  using System; using System.Collections; using System.ComponentModel; using System.Data; using System.Diagnostics; using System.Web; using System.Web.Services; using System.Web.Services.Protocols; using System.Xml.Serialization; namespace testServer {     /// <summary>     /// Summary description for Service1.     /// </summary>     public class Service1 : System.Web.Services.WebService     {         public Service1()         {             //CODEGEN: This call is required by the ASP.NET Web Services Designer             InitializeComponent();         }         #region Component Designer generated code                 //Required by the Web Services Designer         private IContainer components = null;                         /// <summary>         /// Required method for Designer support - do not modify         /// the contents of this method with the code editor.         /// </summary>         private void InitializeComponent()         {         }         /// <summary>         /// Clean up any resources being used.         /// </summary>         protected override void Dispose( bool disposing )         {             if(disposing && components != null)             {                 components.Dispose();             }             base.Dispose(disposing);                }                 #endregion         [WebMethod]         public EnumObject EnumTest()         {             return new EnumObject();         }     }     public enum TypeEnum     {         Thing1 = 0,         Thing2 = 1     }     public class EnumObject     {         [XmlAttribute (AttributeName="Typ")]         public TypeEnum Type = TypeEnum.Thing1;         public EnumObject ()         {   }     } }

  
  
  
  Be sure to reference the Microsoft.Web.Services2 package.
  
  
  Thank You  very much for your time and effort..
  
  Alexandros "Aleksei" Nipirakis
  
  
  
  

• zuninet

  just wondering what the final answer to this one is...
  
  Thanks
  Aleksei
  
  
  
  

• Michel Baladi

  Hi,
  Sorry for the delay. We are looking into this and it will take 1 or 2 days more to give you concrete information.
  
  Thanks for your patience.
  
  
  

• Federico Kolliker Frers - MSFT

  Hi,
  Thanks alot for your detailed response. It will be helpful in isolating the issue. Actually you are working on Visual Studio 2003 and last time I checked it on Visual Studio 2005 Beta2. Therefore I  couldn't hit the issue. Let us check on VS2003. We will get back to you as early as possible.
  
  Thanks for your patience.
  
  

• DLeighty

  Alex: did you remember to thank your super IT Ops team for providing you with the software
  Laurie K

  
  

• zainta

  Hi,
  I tried to repro it on VS2003. I created a C# web service and referred it in a J# console application. C# web service has following 3 methods...
  
  

  [WebMethod]
  public int[] PassAndReturnIntArray(int [] intArr)
  {
  return intArr;
  }

  [WebMethod]
  public float[] PassAndReturnfloatArray(float [] floatArr)
  {
  return floatArr;
  }

  [WebMethod]
  public float[] PassIntFloatReturnfloatArray(float [] floatArr, int [] intArr)
  {
  return floatArr;
  }
  
  J# console app refers this web service and calls these methods one by one...
  
  CSWeb.Service1 serv1 = new Service1();
  float [] floatArr = serv1.PassAndReturnfloatArray(new float[] {(float)1.2, (float)1.4});
  int [] intArr = serv1.PassAndReturnIntArray(new int[] {3, 60});
  float [] floatArr2 = serv1.PassIntFloatReturnfloatArray(new float[] {(float)1.2, (float)1.4}, new int[] {3, 60});
  
  Here CSWeb is reference name i chose while referring the service.
  
  This console app runs fine for me, i am not getting any exception at all. Can you please try this simple repro on you machine and see if it repros.
  
  One more thing, have you made sure that reference to service is correct. You can check this by updating the web reference (right click on reference node in solution explorere and click "update web reference".)
  
  Apart from this, is this possible for me to refer the same web service which you are trying to refer to if yes then please let me know how can i do that
  
  Just FYI, if there is some problem with the arguments being passed, then System.InvaliArgumentException must be thrown. InvalidOPerationException is thrown when a method call is invalid for the object's current state.
  
  Thanks.
  
  
  

  
  
  

• Andrew MacNeill

  Thank you very much for the reply.  I cannot wait to see your next post about this subject.
  
  Thank you
  
  Aleksei
  
  
  
  

• Spidey

  I am sure i did :)
  
  Aleksei
  
  
  
  

• Sudheesh Suresh

  Thanks for your reply,  I will attempt to answer the questions you have posed as best as I can:
  
  1. I am using Visual Studio J# Version 7.1.3088 2003 .net ( I am sure that I completly mangled your version naming :) ) 
  2. I am not sure what language the webservice was written in, I looked at the DocumentService.asmx file that was on the server ( which I assume to be some sort of  a header file for Microsoft Web Services, though to be brutally honest, I have no idea what I am doing with the Server Side portion of Web Services, as I usually implement my web services of this nature in pure Java). This is what I saw inside the asmx file:
  
  <%@ WebService Language="c#" Codebehind="DocumentService.asmx.cs" Class="Connectivity.Web.Services.DocumentService" %>
  
  I believe this means that it was originally written in C#.
  
  3.  I am using a no argument constructor, the constructur inside the webreference on my machine looks like this:
      /** <remarks/> */
      public DocumentServiceWse() {
          this.set_Url("http://XXSERVERXX/AutodeskDM/Services/DocumentService.asmx");
      }
  
  The place it is saying it cannot reflect is:
      /** <remarks/> */
      /** @attribute System.Web.Services.Protocols.SoapHeaderAttribute("SecurityHeaderValue")*/
      /** @attribute System.Web.Services.Protocols.SoapDocumentMethodAttribute("http://AutodeskDM/Services/Document/01/21/2005/GetLatestFileAssociationsByMasterI" +
  "ds", RequestNamespace="http://AutodeskDM/Services/Document/01/21/2005/", ResponseNamespace="http://AutodeskDM/Services/Document/01/21/2005/", Use=System.Web.Services.Description.SoapBindingUse.Literal, ParameterStyle=System.Web.Services.Protocols.SoapParameterStyle.Wrapped)*/
      public FileAssocArray[] GetLatestFileAssociationsByMasterIds(long[] fileMasterIds, AssociationRelationEnum relation, boolean recurse) {
          Object[] results = this.Invoke("GetLatestFileAssociationsByMasterIds", new Object[] {
                      fileMasterIds,
                      relation,
                      (System.Boolean)recurse}
          );
          return ((FileAssocArray[])(results[0]));
      }
  
  4. Unfortunately, I don't have a clue what their code is doing, but as I said, all I am doing is trying to instantiate an instance of a WSE object using J# with a zero argument constructor.  The same exact code that I am using in J# seems to work in C# (with a few minor changes in syntax) which leads me to believe that there is some difference between the two languages.  The only reason I said anything about the arrays is that the Autodesk Programmer suggested that this might be a cause of the problem.
  
  
  Finally, I suppose it might be helpful to post the actual exception text... sorry for not originally doing this:
  
  
  An unhandled exception of type 'System.InvalidOperationException' occurred in system.web.services.dll
  
  Additional information: Method DocumentServiceWse.GetLatestFileAssociationsByMasterIds can not be reflected.
  
  
  
  Again, thank you in advance for any light you can shead on this situation.  I appreciate your dilligance in this matter.
  
  Alexandros "Aleksei" Nipirakis
  G&T Conveyor Tavares, Fl
  
  
  

• Ian1971

  Hi,
  I tried this on my machine but everything works fine for me. What I tried is that I have a C# web service which has a function which takes an array of Integers and returns the array of integers.
  i referrd this web service in my J# project and called the function. This worked fine for me.
  
  Apart from this, this scenario passed for following combination of WebService - Client also...
  
  1. J# Service - J# client
  2. ATL Service - J# client
  
  So I am little doubtful about any bug on this with us. Can you please answer following questions to get your scenario better..
  
  1. Which version of J#/Visual Studio are you working on
  2. Which language the referred Web Service has been written in, if you can find out. (though it hardly matters on .net).
  3. The prototype of the function which throws this exception.
  4. Are you doing proper typecating for sending and receiving the values
  
  Thanks.
  
  

• SuburbanDriver

  Hi Jaiprakash,
  
  Would it be possible to create a service pack for those of us not upgrading to 2005   My company just recently purchased a brand new 2003 License for me because we needed the dev environment before 2005 would be released.  I think that it would only be fair for you to release such changes to those of us that are using 2003 products in the way of a hot fix or service pack.
  
  Thanks
  Alexandros A Nipirakis
  
  
  
  
• System.InvalidOperationException Every Time I try a particular Web Reference