Book Image

The Modern C# Challenge

By : Rod Stephens
Book Image

The Modern C# Challenge

By: Rod Stephens

Overview of this book

C# is a multi-paradigm programming language. The Modern C# Challenge covers with aspects of the .NET Framework such as the Task Parallel Library (TPL) and CryptoAPI. It also encourages you to explore important programming trade-offs such as time versus space or simplicity. There may be many ways to solve a problem and there is often no single right way, but some solutions are definitely better than others. This book has combined these solutions to help you solve real-world problems with C#. In addition to describing programming trade-offs, The Modern C# Challenge will help you build a useful toolkit of techniques such as value caching, statistical analysis, and geometric algorithms. By the end of this book, you will have walked through challenges in C# and explored the .NET Framework in order to develop program logic for real-world applications.
Table of Contents (17 chapters)
Title Page
Copyright and Credits
Packt Upsell
Free Chapter
Dates and Times
Files and Directories
Advanced C# and .NET Features


Use the following problems to test your skills at working with advanced C# language features. Give each problem a try before you turn to the solutions and download the example programs.



73. Directory size, LINQ style

Repeat Problem 65. Directory size. This time, add a SizeLINQ extension method to the DirectoryInfo class that uses LINQ to calculate the size of the files inside the directory.

74. Directory size, PLINQ style

Repeat Problem 73. Directory size, LINQ style, but this time use PLINQ to add file lengths in parallel. Make the test program perform the same operations using a foreach loop, LINQ, and PLINQ, and display the elapsed time for each. Let the user enter a number of times to repeat each operation so that you can get some meaningful times.


Repeating each operation multiple times limits the time used by disk accesses because the file information should be cached after the first set of calculations.

75. Find files, LINQ style

Repeat Problem 69. Find files. This time, give...