gistfile1.txt

using System;

using Foundation;
using AppKit;

namespace TextViewTest
{

	public class StdMyDel : NSTextViewDelegate
	{
		public override void TextDidChange (NSNotification notification)
		{
			Console.WriteLine ("standardTextView: TextDidChange");
		}
	}

	public class CustMyDel : NSTextViewDelegate
	{
		public override void TextDidChange (NSNotification notification)
		{
			Console.WriteLine ("customTextView: TextDidChange");
		}
	}

    public partial class MainWindow : NSWindow
    {
        private CustomTextView customTextView;
        private NSTextView standardTextView;

        public MainWindow (IntPtr handle) : base (handle)
        {
        }

        [Export ("initWithCoder:")]
        public MainWindow (NSCoder coder) : base (coder)
        {

        }

        public override void AwakeFromNib ()
        {
            base.AwakeFromNib ();

            customTextView = new CustomTextView (new CoreGraphics.CGRect (10, 10, 200, 24));
            customTextView.FinishedEditing += () => Console.WriteLine("Shift Enter Pressed");
			customTextView.Delegate = new CustMyDel ();
            ContentView.AddSubview (customTextView);

            standardTextView = new NSTextView (new CoreGraphics.CGRect (10, 50, 200, 24));
            standardTextView.BackgroundColor = NSColor.LightGray;
			standardTextView.Delegate = new StdMyDel ();
            ContentView.AddSubview (standardTextView);
        }
    }
}