Sign In Start Free Trial
Account

Add to playlist

Create a Playlist

Modal Close icon
You need to login to use this feature.
  • C# 6 and .NET Core 1.0
  • Toc
  • feedback
C# 6 and .NET Core 1.0

C# 6 and .NET Core 1.0

3.8 (11)
close
C# 6 and .NET Core 1.0

C# 6 and .NET Core 1.0

3.8 (11)

Overview of this book

With the release of .NET Core 1.0, you can now create applications for Mac OS X and Linux, as well as Windows, using the development tools you know and love. C# 6 and .NET Core 1.0 has been divided into three high-impact sections to help start putting these new features to work. First, we'll run you through the basics of C#, as well as object-orient programming, before taking a quick tour through the latest features of C# 6 such as string interpolation for easier variable value output, exception filtering, and how to perform static class imports. We'll also cover both the full-feature, mature .NET Framework and the new, cross-platform .NET Core. After quickly taking you through C# and how .NET works, we'll dive into the internals of the .NET class libraries, covering topics such as performance, monitoring, debugging, internationalization, serialization, and encryption. We'll look at Entity Framework Core 1.0 and how to develop Code-First entity data models, as well as how to use LINQ to query and manipulate that data. The final section will demonstrate the major types of applications that you can build and deploy cross-device and cross-platform. In this section, we'll cover Universal Windows Platform (UWP) apps, web applications, and web services. Lastly, we'll help you build a complete application that can be hosted on all of today's most popular platforms, including Linux and Docker. By the end of the book, you'll be armed with all the knowledge you need to build modern, cross-platform applications using C# and .NET Core.
Table of Contents (20 chapters)
close
19
Index

Storing data with collections

If you need to store multiple values, you can use a collection. A collection is a data structure in memory that can manage multiple items in different ways, although all collections have some shared functionality.

There are two main namespaces for collections:

  • System.Collections: Avoid the types in this namespace because they store any type that derives from System.Object, that is, every type (which is flexible but not type safe, thus leading to errors and boxing of value types, which can be slow and inefficient).
  • System.Collections.Generic: The types in this namespace were introduced in C# 2 with .NET 2.0 and are better because they allow you to specify the type you want to store (which is safer, faster, and more efficient).

All collections have a Count property to tell you how many items are in it. For example, if we had a collection named passengers we could do this:

int howMany = passengers.Count;

All collections can be iterated using the foreach statement....

Unlock full access

Continue reading for free

A Packt free trial gives you instant online access to our library of over 7000 practical eBooks and videos, constantly updated with the latest in tech
bookmark search playlist font-size

Change the font size

margin-width

Change margin width

day-mode

Change background colour

Close icon Search
Country selected

Close icon Your notes and bookmarks

Delete Bookmark

Modal Close icon
Are you sure you want to delete it?
Cancel
Yes, Delete