Computer science

641
Ebook

ASP.NET MVC 5. Zaawansowane programowanie

Adam Freeman

Rozpocznij tworzenie łatwych w obsłudze, zgodnych ze standardami oraz oferujących najlepszą wydajność aplikacji sieciowych na platformie opracowanej przez Microsoft Platforma ASP.NET MVC powstała jako alternatywa dla ASP.NET Web Forms. Dzięki zastosowaniu architektury model-widok-kontroler (ang. Model View Controller) tworzony kod jest przejrzysty oraz zdecydowanie łatwiejszy w utrzymaniu. Ciągły rozwój tej platformy zaowocował wydaniem kolejnej wersji, oznaczonej numerem 5. Dzięki zawartym tu nowościom stworzysz jeszcze lepszy kod w krótszym czasie. Przekonaj się sam! Niniejsze wydanie tej cenionej przez programistów książki zostało rozszerzone o nowości wprowadzone na platformie ASP.NET MVC 5. Wśród nich znajdziesz opisy sposobu definiowania tras za pomocą atrybutów C# oraz metody nadpisywania filtrów. Odkryjesz tu również omówienia biblioteki Bootstrap (dzięki czemu programiści otrzymują szeroką gamę wieloplatformowych opcji w zakresie tworzenia CSS i HTML5) oraz możliwości zintegrowanego środowiska programistycznego Visual Studio 2013. Ponadto dowiesz się, jak zabezpieczać poszczególne obszary aplikacji, w jaki sposób korzystać z filtrów lub routingu oraz jak obsługiwać żądania AJAX. Ta książka jest kompletnym przewodnikiem po platformie ASP.NET MVC 5. Musisz ją mieć! Dzięki tej książce: poznasz nowości wprowadzone w wersji 5 platformy ASP.NET MVC poznasz architekturę MVC i z jej pomocą zbudujesz aplikację zaznajomisz się z nową wersją środowiska programistycznego Visual Studio 2013 zdobędziesz dogłębną wiedzę o ASP.NET MVC5 Lektura obowiązkowa każdego programisty!

642
Ebook

ASP.NET Site Performance Secrets. Simple and proven techniques to quickly speed up your ASP.NET website

Mattijs Perdeck, Matt Perdeck

Do you think that only experts with a deep understanding of the inner workings of ASP.NET, SQL Server, and IIS can improve a website's performance? Think again – because this book tosses that notion out of the window. It will help you resolve every web developer's nightmare – a slow website – with angry managers looking over your shoulder, raging calls from advertisers and clients – the lot. You don't have the time or energy to gain a thorough and complete understanding of ASP.NET performance optimization – You just need your site to run faster! This book will show you how.This hands-on book shows how to dramatically improve the performance of your ASP.NET-based website straight away, without forcing you through a lot of theoretical learning. It teaches you practical, step-by-step techniques that you can use right away to make your site faster with just the right amount of theory you need to make sense of it all.Start reading today and you could have a faster website tomorrow.Unlike other performance-related books, here you'll first learn how to pinpoint the bottlenecks that hold back your site's performance, so you can initially focus your time and energy on those areas of your site where you can quickly make the biggest difference. It then shows you how to fix the bottlenecks you found with lots of working code samples and practical advice, and just the right amount of theoretical detail.The first chapter details techniques for diagnosing performance issues using Waterfall charts. Subsequent chapters then each focus on one individual aspect of your website, providing you with numerous real-life scenarios and performance-enhancing techniques for each of them. In the last chapter, you learn how to effectively load-test your environment in order to measure the change in performance of your site without having to update your production environment – whether it is a new release or simply a small change in the database.

643
Ebook

ASP.NET Web API Security Essentials. Take the security of your ASP.NET Web API to the next level using some of the most amazing security techniques around

Rajesh Gunasundaram

This book incorporates the new features of ASP.NET Web API 2 that will help you to secure an ASP.NET Web API and make a well-informed decision when choosing the right security mechanism for your security requirements.We start by showing you how to set up a browser client to utilize ASP.NET Web API services. We then cover ASP.NET Web API’s security architecture, authentication, and authorization to help you secure a web API from unauthorized users. Next, you will learn how to use SSL with ASP.NET Web API, including using SSL client certificates, and integrate the ASP.NET Identity system with ASP.NET Web API.We’ll show you how to secure a web API using OAuth2 to authenticate against a membership database using OWIN middleware. You will be able to use local logins to send authenticated requests using OAuth2. We also explain how to secure a web API using forms authentication and how users can log in with their Windows credentials using integrated Windows authentication. You will come to understand the need for external authentication services to enable OAuth/OpenID and social media authentication. We’ll then help you implement anti-Cross-Site Request Forgery (CSRF) measures in ASP.NET Web API.Finally, you will discover how to enable Cross-Origin Resource Sharing (CORS) in your web API application.

644
Ebook

Associations and Correlations. Unearth the powerful insights buried in your data

Lee Baker

Associations and correlations are ways of describing how a pair of variables change together as a result of their connection. By knowing the various available techniques, you can easily and accurately discover and visualize the relationships in your data. This book begins by showing you how to classify your data into the four distinct types that you are likely to have in your dataset. Then, with easy-to-understand examples, you’ll learn when to use the various univariate and multivariate statistical tests. You’ll also discover what to do when your univariate and multivariate results do not match. As the book progresses, it describes why univariate and multivariate techniques should be used as a tag team, and also introduces you to the techniques of visualizing the story of your data. By the end of the book, you’ll know exactly how to select the most appropriate univariate and multivariate tests, and be able to use a single strategic framework to discover the true story of your data.

645
Ebook

Asterisk 1.4 - The Professional's Guide. Implementing, Administering, and Consulting on Commercial IP Telephony Solutions

Colman Carpenter, David Duffett, Ian Plain, Nik Middleton, ...

Asterisk is the leading Open Source Telephony application and PBX software solution. It represents an effective, easy-to-administer, and accessible platform for running enterprise telephony requirements. The real world, however, offers numerous hurdles when running Asterisk in the commercial environment including call routing, resilience, or integrating Asterisk with other systems. This book will show you some of the ways to overcome these problems.As the follow-up to Packt's highly successful 2005 title Building Telephony Systems with Asterisk, this book presents the collected wisdom of Asterisk Professionals in the commercial environment.Aimed at Administrators and Asterisk Consultants who are comfortable with the basics of Asterisk operation and installation, this book covers numerous hands-on topics such as Call Routing, Network Considerations, Scalability, and Resilience ñ all the while providing practical solutions and suggestions. It also covers more business-related areas like Billing Solutions and a Winning Sales Technique. Even if your interest or experience with Asterisk is lower level, this book will provide a deeper understanding of how Asterisk operates in the real world.Asterisk is deployed across countless enterprises globally. Running on Linux, it has constantly demonstrated its resilience, stability, and scalability and is now the advanced communication solution of choice to many organizations and consultants.With a foreword from Mark Spencer, the man behind Asterisk, this book presents the accumulated wisdom of three leading Asterisk Consultants and shows the reader how to get the most out of Asterisk in the commercial environment. Over the course of eleven chapters, this book introduces the reader to topics as diverse as Advanced Dial Plans, Network Considerations, and Call Routing, through to Localization, DAHDI, Speech Technology, and Working with a GUI. The book also covers the more nebulous aspects of being an Asterisk professional such as evaluating customer requirements and pitching for contracts.This book represents the wisdom and thoughts of front line consultants. The knowledge they impart will prove informative, thought provoking and be of lasting interest to Asterisk professionals.

646
Ebook

Asterisk 1.6. Build feature-rich telephony systems with Asterisk

David Merel, David Gomillion, Barrie Dempster

Asterisk is a powerful and flexible open source framework for building feature-rich telephony systems. As a Private Branch Exchange (PBX) which connects one or more telephones, and usually connects to one or more telephone lines, Asterisk offers very advanced features, including extension-to-extension calls, queues, ring groups, line trunking, call distribution, call detail rerecords, and call recording.This book will show you how to build a telephony system for your home or business using this open source application. 'Asterisk 1.6' takes you step-by-step through the process of installing and configuring Asterisk. It covers everything from establishing your deployment plan to creating a fully functional PBX solution. Through this book you will learn how to connect employees from all over the world as well as streamline your callers through Auto Attendants (IVR) and Ring Groups.This book is all you need to understand and use Asterisk to build the telephony system that meets your need. You will learn how to use the many features that Asterisk provides you with. It presents example configurations for using Asterisk in three different scenarios: for small and home offices, small businesses, and Hosted PBX. Over the course of ten chapters, this book introduces you to topics as diverse as Public Switched Telephony Network (PSTN), Voice over IP Connections (SIP / IAX), DAHDI, libpri, through to advanced call distribution, automated attendants, FreePBX, and asterCRM.With an engaging style and excellent way of presenting information, this book makes a complicated subject very easy to understand.

647
Ebook

Asynchroniczność i wielowątkowość w języku C#

Grzegorz Lang

Przejdź na wyższy poziom C# Programowanie wielowątkowe pozwala wykonywać różne czynności z wykorzystaniem więcej niż jednego wątku. W efekcie zwiększa się wydajność operacji, które były ograniczone parametrami procesora. W dodatku dzięki zastosowaniu programowania wielowątkowego zadania można wykonywać w tle, bez pogorszenia responsywności aplikacji. Asynchroniczność umożliwia także zachowanie responsywności aplikacji użytkowych oraz zwiększenie skalowalności aplikacji serwerowych. Brzmi obiecująco. Niestety, programowanie z wykorzystaniem wątków i asynchroniczności nie należy do najprostszych. Jest to dziedzina z natury skomplikowana i błędogenna, także w języku C#. Ten poradnik zbiera i zwięźle tłumaczy wszystkie zagadnienia związane z asynchronicznością i wielowątkowością w C#. Poszczególne tematy uzupełniono przykładami, pomagającymi lepiej zrozumieć problem, którego rozwiązanie można zastosować później w praktyce. Dla wygody w korzystaniu z książki każdy koncept opisano oddzielnie, jednak by go zrozumieć, trzeba przyswoić wiedzę z poprzednich rozdziałów. Dowiedz się, na czym polega wielowątkowość w C# Opanuj zasady programowania równoległego Naucz się programować asynchronicznie Poznaj podstawowe zasady synchronizacji

648
Ebook

Asynchronous Android. As an Android developer you know you're in a competitive marketplace. This book can give you the edge by guiding you through the concurrency constructs and proper use of AsyncTask to create smooth user interfaces

Steve Liles

With more than a million apps available from Google Play, it is more important than ever to build apps that stand out from the crowd. To be successful, apps must react quickly to user input, deliver results in a flash, and sync data in the background. The key to this is understanding the right way to implement asynchronous operations that work with the platform, instead of against it. Asynchronous Android is a practical book that guides you through the concurrency constructs provided by the Android platform, illustrating the applications, benefits, and pitfalls of each.Learn to use AsyncTask correctly to perform operations in the background, keeping user-interfaces running smoothly while avoiding treacherous memory leaks. Discover Handler, HandlerThread and Looper, the related and fundamental building blocks of asynchronous programming in Android. Escape from the constraints of the Activity lifecycle to load and cache data efficiently across your entire application with the Loader framework. Keep your data fresh with scheduled tasks, and understand how Services let your application continue to run in the background, even when the user is busy with something else.Asynchronous Android will help you to build well-behaved apps with smooth, responsive user-interfaces that delight users with speedy results and data that's always fresh, and keep the system happy and the battery charged by playing by the rules.