Alternative to using svcutil.exe? (Can't create interface for ServiceReference)

Concerning your 2nd question, it seems that your class implementing your interface doesn't provide the whole required implementation as if some method defined on the interface were missing. Nevertheless that doesn't appear in the code snipped.
Perhaps it has to do with changing the interface definition and not updating properly the output of its compilation when building your class implementing it... Or the code snipped is not complete ?...
First you should resolve the refrence issue.

Kavlan, I think it's complete.  I just took out a few other operations, datacontracts, and methods that did not pertain to helloWorld.  But I agree that it looks kind of sparse, as if something must be missing, so I'll look at other implementations and see what I can figure out.  It works when compiling using svcutil, but as I said above it's not letting me do it the other way by creating the interface in VS.

I will get back with you when I find something.

Actually I checked against a fresh website and WCF service I created as a test.  It doesn't look like anything is missing.

It just occured to me though, that I'm using VS Web Developer Express for this project.  Creating a WCF service application is a little different than the full version of VS.  The full version has the publish option which creates a dll and the express version doesen't.

Perhaps the dll is needed to interface with the visual studio c# client application designer.

So do you think this could just be a limitation of the express version?

So you're using express... well, you cannot publish your website for example but, if you develop the web service and the client application in the same solution, do you mean that you cannot add a reference on the web service through the solution explorer like shows the attached file ?

Kevlin, thanks, that turned out to be a pretty simple oversight on my part.  This is what worked:

ServiceReference1.IService sr = new ServiceReference1.ServiceClient();

ServiceClient was also in the intellisense menu.

To be honest I don't understand how that ServiceClient class object was automatically created, but there it was plain as day for me to select, and I just overlooked it.  Right there in front of me.  Thanks.

Thank you very much, it really helps to have people to ask these naive questions.

Sorry for mispelling you name, I tried to go back and edit the posts but it would let me.

Thanks again.

A slight correct, I think the client should be created more like this:

ServiceReference1.ServiceClient sr = new ServiceReference1.ServiceClient();

I disagree with you. If you define an interface it is to use it. The interface exposes the methods and properties that are needed in your client application according to your architecture design. At this point you only know that you need a component that exposes A() for example. To really have this component instanciated in your client app, you can re-use a component which is not only designed to give A() but also B(). But your client app doesn't care about B(). Your client app shouldn't even know anything about B() (for security issue for example, or for restricting accroding licences that you sold...). That is why interfaces design are done before implementation.

Let's imagine :
interface IA { void A();}
interface IB { void B();}
class myComponent : public IA, public IB
{
   // coding A() and B()
}

And then in the client app:
IA iA = new myComponent;
iA->... here only A() is available not B() !

An instance X of a class Y that implements an interface Z is an object which proposes the "services" defined (contracted) on the interface's definition. That's also why some microsoft interfaces definitions are public.
That is the same type of difference than between classes and object.

I'm trying to do the same kind of thing here, and the

ServiceReference1.ServiceClient sr = new ServiceReference1.ServiceClient();

doesn't work for me or make much sense.  Where does the "ServiceReference1 come from, and how did it get an "intellisensed" ServiceClient behind it, if it wasn't even instantiated yet?  Error occurs saying "The type or namespace name 'ServiceReference1' could not be found (are you missing a using directive or an assembly reference?)"

I have a web service I've referenced at http://localhost:4500/NewMsgSvc.  It has an event that will bring back message IDs if I give it a date to draw them back from, "GetEventsSince(DateTime since)".  All I wanna know is how do you call this interface for that web service I was given.  The web service has been referenced in my project.

// IExternalSearchEventService.cs - the interface I was given
 
using System;
using System.Collections.Generic;
using System.Text;
using System.ServiceModel;
using System.Data;
using System.Web;
using System.Runtime.Serialization;
using System.Diagnostics;
using Tester;
 
namespace Tester {    
 
    [ServiceContract(Namespace = "http://localhost:4500/NewMsgSvc")]
    public interface IExternalSearchEventService {
 
        [OperationContract()]
        List<SmartSearchEvent> GetEventsSince(DateTime since);
    }
 
// The class that will call the routine, Program.cs:
 
using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.Diagnostics;
using System.Xml;
using System.Xml.XPath;
using System.Data;
using System.Data.SqlClient;
using System.ServiceModel;
using System.Runtime.Serialization;
using Tester;
 
namespace Tester
{
    class Program
    {
        static void Main(string[] args)
        {
            Check_For_Messages();
        }
 
 
       static int Check_For_Messages()
        {
            try
            {
                // Instantiate & open the connection
                SqlConnection sqlConn = new SqlConnection("Data Source=localhost;Initial Catalog=Messaging;Integrated Security=SSPI;Trusted_Connection=Yes");
                sqlConn.Open();
 
                // Retrieve the Last_Run time to know how far back the parent URL has to go
                SqlCommand sqlLastRun = new SqlCommand("SELECT Last_Run FROM Sys", sqlConn);
                DateTime lastRunDate = (DateTime)sqlLastRun.ExecuteScalar();
                Console.WriteLine("Last Ran:" + lastRunDate);
 
                // Get an array of messages - this is where I'd like help
                IExternalSearchEventService searchSvc = new IExternalSearchEventService.ServiceClient(); 
                searchSvc.GetEventsSince(lastRunDate);
 
                // Close the connection
                sqlConn.Close();
                return 0;
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
                return 1;
            }
        }
                                              

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Ok, think I figured it out...  Here's what I learned.  This is what they should have said to answer the question -

When you use an interface, you have to do these things first:

1)  The class on your client (the class calling the interface) should match the class on your web service. (Changed my "class Program", above, to "class NewMsgSvc")
2)  The class on your client needs to inherit the interface name (in my case, IExternalSearchEventService - changed my "class NewMsgSvc" from step #1 to "class NewMsgSvc : IExternalSearchEventService")
3)  You have to have a DataContract section in its own class, with DataMembers, so you can get back results.  This can be a section under the interface, just in its own class.  (added - see below)
4)  You must create a function within your client class that a) instantiates the service class into a variable (  NewMsgSvc searchSvc = new NewMsgSvc();  ), and b) returns the value of that variable.InterfaceEvent(parameterYouWantToPass)  (added - see below)
5)  You must call that function in your client class
(I used:                    
List<NewMessages> msgList = GetEventsSince(lastRunDate);
)

I wish that had just been spelled out.  Hopefully someone will be able to put this information to good use.

    // New DataContract section
    [DataContract(Namespace = "http://localhost:4500/NewMsgSvc")]
    public class NewMessages
    {
        [DataMember]
        private string msgId;
        public string MsgId
        {
            get { return msgId; }
        }
    }
 
// function to call the web service, in the client class
        public List<NewMessages> GetEventsSince(DateTime lastRunDate)
        {
            NewMsgSvc searchSvc = new NewMsgSvc();
            return searchSvc.GetEventsSince(lastRunDate);
        }
                                              

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