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

Workshop

The Workshop is designed to help you anticipate possible questions, review what you've learned, and get you thinking about how to put your knowledge into practice. The answers to the quiz are in Appendix A, "Answers to Quizzes/Exercises."

Quiz

1. To create objects, you must first create a template. This template is called a:
2. One of the primary benefits of object-oriented programming is that objects contain both their data and their code. This is called:
3. With static classes, public variables and routines are always available to code via the static class in other modules. Is this true with public variables and routines in classes?
4. True or False: Each object derived from a class has its own set of class-level data.
5. What must you do to create a property that can be read but not changed by client code?
6. What is the best way to store the internal value of a property within a class?
7. Which is generally superior, early binding or late binding?
8. What is the best way to release an object you no longer need?

Exercises

1. Add a new property to your class called DropsInABucket. Make this property a Long, and set it up so that client code can read the property value but not set it. Finally, add a button to the form that, when clicked, prints the value of the property to the Output window. When this is working, modify the code so that the property always returns 1,000,000.
2. Add a button to your form that creates two object variables of type clsMyClass(). Use the new keyword to instantiate a new instance of the class in one of the variables. Then set the second variable to reference the same object and print the contents of the Height property to the Output window.

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