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C# Programming Cookbook

C# Programming Cookbook

By : Dirk Strauss
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C# Programming Cookbook

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 (15 chapters)
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14
Index

Sanitizing input


Sometimes, you will need to sanitize input. This could be to prevent SQL injections or ensure that an entered URL is valid. In this recipe, we will look at replacing the bad words in a string with asterisks. We are sure that there are more elegant and code-efficient methods of writing sanitation logic using regex (especially when we have a large collection of blacklist words), but we want to illustrate a concept here.

Getting ready

Ensure that you have added the correct assembly to your class. At the top of your code file, add the following line of code if you haven't done so already:

using System.Text.RegularExpressions;

How to do it…

  1. Create a new method in your Recipes.cs class called SanitizeInput() and let it accept a string parameter:

    public string SanitizeInput(string input)
    {
                    
    }
  2. Add a list of type List<string> to the method that contains the bad words we want to remove from the input:

    List<string> lstBad = new List<string>(new string[] {...
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C# Programming Cookbook
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