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.NET Forum / ASP.NET / General / March 2008Getting unable to cast error (when same object is referenced in client and web service)
I am getting following error: 1) For a xml file "Request.xml" we created a schema "Request.xsd". 2) With the help of xsd.exe we got the C# file Request.cs. 3) We tried to send the object of Request.cs to a webservice method SaveRequest(Request req). 4) Scenario is like same Request.cs is referenced by both server and client. 5)When we are trying to pass the req object of type Request we are getting unable to cast error. Is this expected? If so, are there any workarounds? Please help us in solving this. Thanks !!!!! >I am getting following error: > [quoted text clipped - 12 lines] > > Is this expected? If so, are there any workarounds? This is expected. The classes on the client side are proxy classes only - they are not meant to be the same as the server-side classes. Their only purpose is to make it easier for you to call the web methods exposed by the server. In fact, if you ever get a situation with ASMX web services where you have the same class on the client and the server, then you've almost certainly made a very serious mistake.  Signature-------------------------------------------------------------------------------- John Saunders | MVP - Windows Server System - Connected System Developer Hi John, I've went through similar steps as Rahul, which is that I created a class by using xsd.exe, I have a web service which return this serialized class. I declared a variable as this class, and assign the return value of my web service to the variable, I got compiling error "Cannot implicitly convert type MyWebServiceTest.MyService.GetUserInfoResponseGetUserInfoResult to User". How can I get result from my web service? Thanks. William > >I am getting following error: > > [quoted text clipped - 21 lines] > the same class on the client and the server, then you've almost certainly > made a very serious mistake. > Hi John, > I've went through similar steps as Rahul, which is that I created a class [quoted text clipped - 6 lines] > > How can I get result from my web service? William, that error message you posted seems to be cut off. Surely the message doesn't end with the word "User". Signature-------------------------------------------------------------------------------- John Saunders | MVP - Windows Server System - Connected System Developer Hi John, Actually my class name is "User", I declares a type as "User" on client side, and tried to assign the return value of web service to it.Thanks. William > > Hi John, > > I've went through similar steps as Rahul, which is that I created a class [quoted text clipped - 9 lines] > William, that error message you posted seems to be cut off. Surely the > message doesn't end with the word "User". > Hi John, > > Actually my class name is "User", I declares a type as "User" on client > side, and tried to assign the return value of web service to it.Thanks. Ok, but it looks like the proxy class (on the client) is returning type MyWebServiceTest.MyService.GetUserInfoResponseGetUserInfoResult. I bet this type has a property inside of it with the type User. Signature-------------------------------------------------------------------------------- John Saunders | MVP - Windows Server System - Connected System Developer
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