CODEWITHSUNDEEP
wcfwindows-serviceswcf-ria-services
Viral Sarvaiya
Viral Sarvaiya

Reputation: 781

use of RIA Service project's DLL in Window service

I have one project which has RIAService with entity framework that is referenced to my Silvelright project. so when i build project that build RIA Service project's DLL and put that in Bin/Debug folder of Silverlight project.

Domain service function is like below

[EnableClientAccess()]
public partial class MyClassDomainService : LinqToEntitiesDomainService<MyDatabaseEntities>
{
    [Invoke]
    public void MyFunction(int Para1, string Para2, int Para3, string Para4)
    {
          //mycode
    }
}

Now i am build this porject and copy this RIAService.dll and other require DLLs to my another project is window service project.

Now in window service i am creating object of this Domain service as like below in timerQlinkRequest_Elapsed() function.

private void timerQ_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
{
    try
    {
        MyClassDomainContext objcontext = new MyClassDomainContext();
        objcontext.MyFunction(1, "ADD", 1234, "Vehicle");
    }
    catch (Exception ex)
    {
        LogMessage("Error : StackTrace : " + ex.StackTrace);
    }
}

After installing and Start window service i get below error in ex.stackTrace in log filem as below

Error : StackTrace :    at MS.Internal.JoltHelper.get_Context()
   at MS.Internal.XcpImports.Application_GetCurrent(IntPtr& pApp)
   at System.Windows.Application.get_Current()
   at System.ServiceModel.DomainServices.Client.WebDomainClient`1.ComposeAbsoluteServiceUri()
   at System.ServiceModel.DomainServices.Client.WebDomainClient`1..ctor(Uri serviceUri)
   at RIAService.Web.Service.QLink.MyClassDomainContext..ctor()
   at MywindowService.MyService1.timerQ_Elapsed(Object sender, ElapsedEventArgs e)

so my main confusion is, can i do like this? if yes then where i go wrong?

please help me.

waiting for reply.

Upvotes: 0

Views: 292

Answers (2)

Viral Sarvaiya
Viral Sarvaiya

Reputation: 781

i get solution in other way,

in my project.Web (ASP.NET project) i create a simple WCF application that call my function of WCF RIA Service.

And in window service solution I add service reference of that WCF service and calling that WCF function and complete my task.

@duluca thanks fro the reply.

Upvotes: 0

Doguhan Uluca
Doguhan Uluca

Reputation: 7323

You shouldn't be doing what you're trying to do. WCF RIA was created to bridge the gap between specific implementations of server and client applications. When you build your project, there's all kinds of code-generation going on that ties the client to an implementation on the server.

Now, what you CAN do here is:

  1. Move your second client to the same solution and add it as a second RIA client to the Silverlight.Web project. You can do this from the project settings and you'll get full RIA benefits.
  2. You can try to call your deployed RIA service, as if it is a WCF service; after all it is called WCF RIA Services for a reason. Now you won't get all the built in support (mostly provided by the code generation) but you can still manually perform CRUD operations through WCF actions. Check here "Browse to the Domain Service Directly" section, to see how to locate the svc files.

I recommend the 1st option, if you're going for Edit capabilities. But 2nd option should work relatively painlessly for read-only data. But then again for that I'd recommend exposing an O-Data endpoint, which is very easy to do in WCF RIA.

Upvotes: 1

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