Book Image

C# Programming Cookbook

By : Dirk Strauss
Book Image

C# Programming Cookbook

By: Dirk Strauss

Overview of this book

During your application development workflow, there is always a moment when you need to get out of a tight spot. Through a recipe-based approach, this book will help you overcome common programming problems and get your applications ready to face the modern world. We start with C# 6, giving you hands-on experience with the new language features. Next, we work through the tasks that you perform on a daily basis such as working with strings, generics, and lots more. Gradually, we move on to more advanced topics such as the concept of object-oriented programming, asynchronous programming, reactive extensions, and code contracts. You will learn responsive high performance programming in C# and how to create applications with Azure. Next, we will review the choices available when choosing a source control solution. At the end of the book, we will show you how to create secure and robust code, and will help you ramp up your skills when using the new version of C# 6 and Visual Studio
Table of Contents (21 chapters)
C# Programming Cookbook
Credits
About the Author
Acknowledgements
About the Reviewer
www.PacktPub.com
Preface
Index

Single responsibility principle


When talking about SOLID principles, we will start off with the SRP. Here, we are actually saying that a class has a specific task that it needs to fulfil and it should not do anything else.

Getting ready

You will create a new class and write code to log an error to the database when an exception is thrown on adding more troops to the star ship, causing it to be over capacity.

How to do it…

  1. Create a new class called StarShip:

    public class Starship
    {
           
    }
  2. To your class, add a new method that will set the maximum troop capacity of the StarShip class:

    public void SetMaximumTroopCapacity(int capacity)
    {            
    
    }
  3. Inside this method, add a trycatch clause that will attempt to set the maximum troop capacity, but for some reason, it will fail. Upon failure, it will write the error to the log table inside the database:

    try
    {
        // Read current capacity and try to add more
    }
    catch (Exception ex)
    {
        string connectionString = "connection string goes here";
        string...