<code C#>
using Microsoft.CodeAnalysis.CSharp.Scripting;
using System;
using System.Windows.Forms;

namespace Pokus
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private async void button1_ClickAsync(object sender, EventArgs e)
        {
            string source = "Win.Text = \"Click \" + X + Y ;";
            var variables = new Variables { X = 1, Y = 2, Win = this };
            var state = await CSharpScript.RunAsync(source, globals: variables);
            // zarovicka, make method async, stay void
            var result = state.ReturnValue;
        }
    }
    public class Variables
    {
        public int X;
        public int Y;
        public Form Win;
    }
}

// Tools > NuGet Package Manager > Package Manager Console
// Install-Package Microsoft.CodeAnalysis.CSharp.Scripting

</code>