Managed Cobol to C#

Calling C# code from managed COBOL is not difficult at all. They are both .NET languages so they can easily call each other by calling their methods.

A very simple example would be: (Add a reference to the COBOL project in the C# project.

      $set ilusing"csClass"
       program-id. Program1 as "cobmain.cobmain".

       data division.
       working-storage section.
       01 mystring  string value "from COBOL".
       01 myint     binary-long value 1.
       01 ret-value binary-long value 0.
       procedure division.
           display "in cobmain"
           declare csClass1 as type Class1 = new Class1
           set ret-value = csClass1::csMethod(by reference mystring, myint)
           display "ret value = ", ret-value
           display mystring
           display myint
           goback.

       end program Program1.

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

namespace csClass
{
    public class Class1
    {
        public int csMethod(ref string mystring, ref int myint)
        {
            Console.WriteLine("in Class1");
            Console.WriteLine(mystring);
            Console.WriteLine(myint);
            mystring = "from C#";
            myint = 99;
            return (0);
        }
    }
}