Passing Entity Framework edmx over WCF Services, using var at receiving end

1. Create a WCF Service

2. Create an entity model with the Beancurds table

3. Change the IService.cs file as follow

public interface IService
    List<BeancurdModel.Beancurd> GetData();

4. Change the Service.cs file as follow.

public class Service : IService
public List<BeancurdModel.Beancurd> GetData()
BeancurdModel.BeancurdEntities context = new BeancurdModel.BeancurdEntities();
 var bc = from b in context.Beancurds select b;
return bc.ToList();

5. Create a web application with 1 Web Form and 1 Button Control
6. Add service reference 

7. Add the code to code behind file

protected void Button1_Click(object sender, EventArgs e)
ServiceReference1.ServiceClient proxy = new ServiceReference1.ServiceClient();
  var bcs = proxy.GetData();
  foreach (ServiceReference1.Beancurd bc in bcs)
    Response.Write(bc.BeancurdID + “, “ + bc.BeancurdType);

Download the complete code from The sample file name is AddWCFReference.rar. My MSN ID is

About chanmingman

Since March 2011 Microsoft Live Spaces migrated to Wordpress ( till now, I have is over 1 million viewers. This blog is about more than 50% telling you how to resolve error messages, especial for Microsoft products. The blog also has a lot of guidance teaching you how to get stated certain Microsoft technologies. The blog also uses as a help to keep my memory. The blog is never meant to give people consulting services or silver bullet solutions. It is a contribution to the community. Thanks for your support over the years. Ming Man is Microsoft MVP since year 2006. He is a software development manager for a multinational company. With 25 years of experience in the IT field, he has developed system using Clipper, COBOL, VB5, VB6, VB.NET, Java and C #. He has been using Visual Studio (.NET) since the Beta back in year 2000. He and the team have developed many projects using .NET platform such as SCM, and HR based applications. He is familiar with the N-Tier design of business application and is also an expert with database experience in MS SQL, Oracle and AS 400.
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3 Responses to Passing Entity Framework edmx over WCF Services, using var at receiving end

  1. Pingback: Creating and Accessing WCF Services simple sample – C# | Chanmingman's Blog

  2. Indu says:

    I came across you blog for WCF service. Do you any examples Sql data access layer simple connection in the WCF service?


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