Create a C# project in visual studio like below
Add the following class in your project area
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace AYDotNet
{
public class Calculator
{
public decimal Add(decimal x, decimal y)
{
return x + y;
}
}
}
Now build the project and not the solution.
Once that is done, now add a new Dynamics 365 FO project in the same solution and give the appropriate model.
Add a runnable class in the D365 FO as follows:
using AYDotNet;
class MCO_Test
{
public static void main(Args _args)
{
var cal = new Calculator();
Info(strFmt("%1",cal.Add(10, 20)));
}
}
Now add the reference of the C# class in the D365 FO project as follows :
Now you will see something as below, select it and press Ok