Book Image

Microsoft .NET Framework 4.5 Quickstart Cookbook

By : Jose Luis Latorre
Book Image

Microsoft .NET Framework 4.5 Quickstart Cookbook

By: Jose Luis Latorre

Overview of this book

With about ten years since its first release, Microsoft's .NET Framework 4.5 is one of the most solid development technologies to create casual, business, or enterprise applications. It has evolved into a very stable framework and solid framework for developing applications, with a solid core, called the CLR (Common Language Runtime) Microsoft .NET Framework 4.5 includes massive changes and enables modern application and UI development."Microsoft .Net Framework 4.5 Quickstart Cookbook" aims to give you a run through the most exciting features of the latest version. You will experience all the flavors of .NET 4.5 hands on. The “How-to” recipes mix the right ingredients for a final taste of the most appetizing features and characteristics. The book is written in a way that enables you to dip in and out of the chapters.The book is full of practical code examples that are designed to clearly exemplify the different features and their applications in real-world development. All the chapters and recipes are progressive and based on the fresh features on .NET Framework 4.5.The book will begin by teaching you to build a modern UI application and improve it to make it Windows 8 Modern UI apps lifecycle model-compliant. You will create a portable library and throttle data source updating delays. Towards the end of the book, you will create you first Web API.

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Microsoft .NET Framework 4.5 Quickstart Cookbook
Jose Luis Latorre
May, 2013 | 226 pages
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Table of Contents (19 chapters)
Microsoft .NET Framework 4.5 Quickstart Cookbook
Microsoft .NET Framework 4.5 Quickstart Cookbook
Credits
Credits
About the Author
About the Author
Acknowledgment
Acknowledgment
About the Reviewers
About the Reviewers
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
Windows Store Apps
Windows Store Apps
Introduction
Building our first Windows Store app
Adding a splash screen (and app tiles) to our app
Improving the application to make it compliant with the Windows 8 lifecycle model
Improving our application tile
Improving our application with toast notifications
2
Exploring the Top New Features of the CLR
Exploring the Top New Features of the CLR
Introduction
Creating a portable library
Controlling the timeout in regular expressions
Defining the culture for an application domain
Overriding the default reflection behavior
Using the new ZipArchive class
Understanding async and await in .NET 4.5
Using the new asynchronous file I/O operations
3
Understanding the New Networking Capabilities
Understanding the New Networking Capabilities
Introduction
Using the HttpClient and the new System.Net.Http namespaces
4
Understanding the new features of Entity Framework 5.0
Understanding the new features of Entity Framework 5.0
Introduction
Creating our first "Code First" application
Using Code First Migrations
5
Understanding the New Features of ASP.NET
Understanding the New Features of ASP.NET
Introduction
Creating our first ASP.NET 4.5 Web Forms application
Configuring our application to use unobtrusive validation
Using Smart Tasks in the HTML editor
Using WAI-ARIA support
Using the Extract to User Control feature
Using the Page Inspector feature
Creating an asynchronous HTTP module
6
Implementing WPF's new features
Implementing WPF's new features
Introduction
Implementing asynchronous error handling with INotifyDataErrorInfo
Using the WeakEvent pattern with WeakEventManager
Using the dispatcher's new features
Data binding to static properties
Throttling data source update delays
LiveShaping – repositioning elements when its bound data changes
7
Applying the New WCF Features
Applying the New WCF Features
Introduction
Using the asynchronous features of WCF
Using WebSockets
Using Contract First development
8
Creating and Hosting Our First ASP.NET Web API
Creating and Hosting Our First ASP.NET Web API
Introduction
Creating our first ASP.NET web API
Implementing a CRUD ASP.NET web API
Setting up a self-hosted ASP.NET web API
9
Using the New Capabilities of WF
Using the New Capabilities of WF
Introduction
Creating a state machine workflow
Using the enhanced designer features
Resources for Further Knowledge
Resources for Further Knowledge
Resources for knowing more about .NET 4.5 and its tools
Resources for knowing more about Windows 8
Resources for knowing more about general development
.NET 4.5 – Deployment Risks and Issues
.NET 4.5 – Deployment Risks and Issues
Introduction
Risks of the in-place upgrade
Platform targeting
Other risks
Index
Index

Controlling the timeout in regular expressions

.NET 4.5 gives us improved control on the resolution of regular expressions so we can react when they don't resolve on time. This is extremely useful if we don't control the regular expressions/patterns, such as the ones provided by the users.

A badly formed pattern can have bad performance due to excessive backtracking and this new feature is really a lifesaver.

How to do it...

Next we are going to control the timeout in the regular expression, where we will react if the operation takes more than 1 millisecond:

  1. Create a new Visual Studio project of type Console Application, named caRegexTimeout.

  2. Open the Program.cs file and add a using clause for using regular expressions:

    Using System.Text.RegularExpressions;

  3. Add the following method and call it from the Main function:

    private static void ExecuteRegexExpression() {
bool RegExIsMatch = false;
string testString = "One Tile to rule them all, One Tile to find them… ";
string RegExPattern = @"([a-z ]...
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