1.0 Purpose

The objective of this page is for the reader to create an CocoaSharp Xcode project that allow the user to:

• Type a string in a TextField
• Click a 'Count' Button
• The application display the number of characters in the user-specified string

2.0 Introduction

The below video tutorial shows a developer making their first CocoaSharp application. Basic concepts are demostrated which include using the Xcode project template, editing a .nib file, control bindings, etc. A word to the C# WinForm developers. The Cocoa window library IS NOT WinForms. Right, wrong or indifferent, it is what it is. I personally am an WinForm developer as well and found it difficult at first to get use to "hard" separation from the GUI controls and the source code. However, after a short time I started to get use it.

This little project was inspired from one of the code exercises from "Cocoa Programming for Mac OS X" by Aaron Hillegass

3.0 System Requirements

• Mono 1.2 or later
• CocoaSharp 0.9 or later (I'd recommend getting the latest source and compiling)
• Apple Developer Tools (Xcode and Interface Builder) installed.
• CSharpPlugin installed

4.0 Video

LetterCounter Quicktime Video (42MB)