Sams Teach Yourself C# in 24 Hours

By James Foxall and Wendy Haro-Chun

• Table of Contents
  • Copyright
  • About the Authors
  • Acknowledgments
  • Tell Us What You Think!
  • Introduction
  • Audience and Organization
  • Conventions Used in This Book
  • Onward and Upward!
  • Part I. The Visual Studio Environment
  • Hour 1. A C# Programming Tour
  • Hour 2. Navigating C#
  • Hour 3. Understanding Objects and Collections
  • Hour 4. Understanding Events
  • Part II. Building a User Interface
  • Hour 5. Building FormsPart I
  • Hour 6. Building FormsPart II
  • Hour 7. Working with the Traditional Controls
  • Hour 8. Advanced Controls
  • Hour 9. Adding Menus and Toolbars to Forms
  • Hour 10. Drawing and Printing
  • Part III. Making Things HappenProgramming!
  • Hour 11. Creating and Calling Methods
  • Hour 12. Using Constants, Data Types, Variables, and Arrays
  • Hour 13. Performing Arithmetic, String Manipulation, and Date/Time Adjustments
  • Hour 14. Making Decisions in C# Code
  • Hour 15. Looping for Efficiency
  • Hour 16. Debugging Your Code
  • Hour 17. Designing Objects Using Classes
    • Understanding Classes
    • Instantiating Objects from Classes
    • Summary
    • Q&A
    • Workshop
  • Hour 18. Interacting with Users
  • Part IV. Working with Data
  • Hour 19. Performing File Operations
  • Hour 20. Controlling Other Applications Using Automation
  • Hour 21. Working with a Database
  • Part V. Deploying Solutions and Beyond
  • Hour 22. Deploying a Solution
  • Hour 23. Introduction to Web Development
  • Hour 24. The 10,000-Foot View
  • Appendix A. Answers to Quizzes/Exercises

Summary

Object-oriented programming is an advanced methodology that enables you to create more robust applications; programming classes is the foundation of OOP. In this hour, you learned how to create classes, which are the templates used to instantiate objects. You learned how to create a custom interface consisting of properties and methods and how to use the classes you've defined to instantiate and manipulate objects by way of object variables. You've also learned how you should implement a Dispose() method for classes that consume resources and how it is important to call Dispose() on objects that implement it to ensure that the object frees up its resources as soon as possible. Finally, you learned how objects aren't destroyed as soon as they are no longer needed; rather, they become eligible for garbage collection and are destroyed when the garbage collector next cleans up.

In this hour, you learned the basic mechanics of programming objects with classes. Object-oriented programming takes considerable skill, and you'll need to master the concepts in this book before you can really begin to take advantage of what OOP has to offer. Nevertheless, what you learned in this hour will take you further than you might think. Using an OOP methodology is as much a way of thinking as it is a way of programming; consider how things in your projects might work as objects, and before you know it, you'll be creating robust classes.

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