How do you make code that worked in a form app work in a console app?

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C#

I have code that works in a form app. I transferred the code to a console app in order to do multiple analyses and have made all the corrections for inputting variables that came from the form controls. All the code works in the console app, except that which is associated with an event handler. In the code below, I get the following 2 errors in the locations shown:
Error 1: CS0120 An object reference is required for the non-static field, method, or property 'Program.OnIterationEvent'
Error 2: CS0026 Keyword 'this' is not valid in a static property, static method, or static initializer

I haven't been able to find anything using Google searches that helps. Why would the event handler work in a form app but not in a console app? Any help is much appreciated.

What I have tried:

I have the following separate class:
Class IterationEventArgs.cs
// normal "using" statements

namespace Limits
{
    class IterationEventArgs : EventArgs
    {
        public int IterationNumber { get; set; }

        public IterationEventArgs(int aNumber)
        {
            IterationNumber = aNumber;
        }
    }
}

The main program includes the following:

// normal "using" statements plus:
// with or without 'public delegate void EventHandler();'

namespace Limits
{
   Class Program
   {
      public event EventHandler<IterationEventArgs> OnRaiseIterationEvent;
      static void Main(string[] args)
      {
         // code
         void RaiseIterationEvent(int iterationNumber)
         {
            if (OnRaiseIterationEvent != null) // Error 1
                OnRaiseIterationEvent(this, new iterationEventArgs(iterationNumber)); //Error 1, 2
            else
                return;
         }
      }
   }
}

I have a method within the Main method that calls the RaiseIterationEvent method
within a for loop using:

RaiseIterationEvent(iterationNumber1);