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
    • Understanding Data Types
    • Defining and Using Constants
    • Declaring and Referencing Variables
    • Determining Scope
    • Naming Conventions
    • Summary
    • Q&A
    • Workshop
  • 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
  • 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. What data type would you use to hold currency values?
2. Which data type can be used to hold any kind of data and essentially serves as a generic data type?
3. What values does C# support for type bool?
4. What can you create to eliminate magic numbers by defining a literal value in one place?
5. What type of data element can you create in code that can have its value changed as many times as necessary?
6. What are the first and last indexes of an array dimensioned using string_strMyArray[5]?
7. What word is given to describe the visibility of a constant or variable?
8. In general, is it best to limit the scope of a variable or to use the widest scope possible?

Exercises

1. Create a project with a text box, a button, and a label control. When the user clicks the button, move the contents of the text box to a variable, and then move the contents of the variable to the Text property of the label. (Hint: a string variable will do the trick.)
2. Rewrite the following code so that a single array variable is used rather than two standard variables. (Hint: Do not use a multidimensional array.)

   string strFirstName;
   string strLastName ;
   strFirstName = "Allison";
   strLastName = "Bermejo";
   

Share This