Migrate / Move from Entity Framework (EF) to WCF Data Services (Part 1) – Create

1.       Create an Empty Web Project.

 web

2.       Add the existing project created in

http://chanmingman.spaces.live.com/blog/cns!FC20790B8D5B95F4!622.entry

3.       Set the console project as the start up project.

4.       Press down the Shift key then drag and drop the ModelBC.edmx to the Web Project.

5.       Copy the connection string from the console project to web project.

The connection string will look like this

<add name=BeancurdEntities connectionString=metadata=res://*/ModelBC.csdl|res://*/ModelBC.ssdl|res://*/ModelBC.msl;provider=System.Data.SqlClient;provider connection string=&quot;Data Source=.;Initial Catalog=Beancurd;Integrated Security=True;MultipleActiveResultSets=True&quot; providerName=System.Data.EntityClient />

 

6.       Add the WCF Data Service. I named my one BCDataService.svc

DS

7.       Change the code to

public class BCDataService : DataService<BeancurdEntities>

{

  // This method is called only once to initialize service-wide policies.

  public static void InitializeService(DataServiceConfiguration config)

  {

  // TODO: set rules to indicate which entity sets and service operations are visible, updatable, etc.

  // Examples:

    config.SetEntitySetAccessRule(“*”, EntitySetRights.All);

 // config.SetServiceOperationAccessRule(“MyServiceOperation”, ServiceOperationRights.All);

    config.DataServiceBehavior.MaxProtocolVersion = DataServiceProtocolVersion.V2;

  }

}

 

Right click on the BDDataService.svc then choose Open in Browser to validate the link is valid as well as starts the service.

8.       Add the Service Reference to console project.

Right click the Reference then Choose Add Service Reference…

 AddRef

9.       Click Discover then click OK.Discover

 

10.   Change the code from

    static void Main(string[] args)

    {

      //Define an entity object

      BeancurdEntities entBC = new BeancurdEntities();

      //define a single Beancurds object

      Beancurds objBC = new Beancurds();

      //Assign value to columns

      objBC.BeancurdID = 1;

      objBC.BeancurdType = “China”;

      objBC.Qty = 10;

      //Add to database

      entBC.AddToBeancurds(objBC);

      entBC.SaveChanges();

    }

to

static void Main(string[] args)

{

      //Define an entity object

  BCServiceReference.BeancurdEntities entBC = new BCServiceReference.BeancurdEntities(new Uri(http://localhost:7318/BCDataService.svc/&#8221;));

      //define a single Beancurds object

  BCServiceReference.Beancurds objBC = new BCServiceReference.Beancurds();

      //Assign value to columns

  objBC.BeancurdID = 10;

  objBC.BeancurdType = “Hong Kong”;

  objBC.Qty = 10;

      //Add to database

  entBC.AddToBeancurds(objBC);

  entBC.SaveChanges();

}

 

Download the complete code from http://skydrive.live.com. The sample file name is WebAppLINQtoDS.rar. My MSN ID is chanmmn@hotmail.com.

About chanmingman

Since March 2011 Microsoft Live Spaces migrated to Wordpress (http://www.pcworld.com/article/206455/Microsoft_Live_Spaces_Moves_to_WordPress_An_FAQ.html) 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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5 Responses to Migrate / Move from Entity Framework (EF) to WCF Data Services (Part 1) – Create

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