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no overload for method takes 0 arguments, in a method which does not need an argument

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Posted on by Daniel Mora

148

Hi,

I developed a simple service in AX2012 which only has a method for counting everytime the service gets consumed.

[SysEntryPointAttribute(true)]
public int ContadoraAvrAvr()
{
    _Counter  ;
    return _Counter;
}

But when I try to consume it in a C# console project I receive the error No overload for method takes 0 arguments. But my method does not need any arguments.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using ConsumeBasicCustomService.ContadoraServicioGrupo;

namespace ConsumeBasicCustomService
{
    class Program
    {
        static void Main(string[] args)
        {
            ContadoraServicioClient contadoraServicioVar;
            
            contadoraServicioVar.ContadoraAvrAvr();

            Console.WriteLine();
            Console.ReadLine();

        }
    }
}

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Martin Dráb 237,803 Most Valuable Professional on at

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What would likely help is knowing what parameters the method actually expects, which you can easily see in Visual Studio, e.g. by typing contadoraServicioVar.ContadoraAvrAvr( and checking IntelliSense.

You'll find that the methods needs a CallContext object.

As you see, the parameter profile of the service operation and the method in the proxy class don't have to be identical.

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Daniel Mora 148 on at

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Hi Martin,

I understand now that I need a CallContext object, however I dont know exactly how I should code this based on what I have.

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Martin Dráb 237,803 Most Valuable Professional on at

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If you don't want to provide any parameters, you can simply create a new, empty CallContext:

contadoraServicioVar.ContadoraAvrAvr(new CallContext());

If you want to set some values, you need to create an instance of CallContext and set its properties. This example is copied from AX documentation:

// Create an instance of the CallContext class. CallContext context = new CallContext(); // Set the value for Company. context.Company = "dat"; // Set the value for LogonAsUser. context.LogonAsUser = @"yourdomain\userid"; // Set the value for language. context.Language = "en-us";

You could also use different syntax for the same thing:

// Create an instance of the CallContext class. CallContext context = new CallContext { Company = "dat", LogonAsUser = @"yourdomain\userid", Language = "en-us" };

Then you'll pass the object to your method:

contadoraServicioVar.ContadoraAvrAvr(context);

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