Book Image

C# 7 and .NET: Designing Modern Cross-platform Applications

By : Mark J. Price, Ovais Mehboob Ahmed Khan
Book Image

C# 7 and .NET: Designing Modern Cross-platform Applications

By: Mark J. Price, Ovais Mehboob Ahmed Khan

Overview of this book

C# is a widely used programming language, thanks to its easy learning curve, versatility, and support for modern paradigms. The language is used to create desktop apps, background services, web apps, and mobile apps. .NET Core is open source and compatible with Mac OS and Linux. There is no limit to what you can achieve with C# and .NET Core. This Learning Path begins with the basics of C# and object-oriented programming (OOP) and explores features of C#, such as tuples, pattern matching, and out variables. You will understand.NET Standard 2.0 class libraries and ASP.NET Core 2.0, and create professional websites, services, and applications. You will become familiar with mobile app development using Xamarin.Forms and learn to develop high-performing applications by writing optimized code with various profiling techniques. By the end of C# 7 and .NET: Designing Modern Cross-platform Applications, you will have all the knowledge required to build modern, cross-platform apps using C# and .NET. This Learning Path includes content from the following Packt products: • C# 7.1 and .NET Core 2.0 - Modern Cross-Platform Development - Third Edition by Mark J. Price • C# 7 and .NET Core 2.0 High Performance by Ovais Mehboob Ahmed Khan
Table of Contents (25 chapters)
Title Page
Copyright
About Packt
Contributors
Preface
16
Designing Guidelines for .NET Core Application Performance
Index

Storing data with fields


Next, we will define some fields in the class to store information about a person.

Defining fields

Inside the Person class, write the following code. At this point, we have decided that a person is composed of a name and a date of birth. We have encapsulated these two values inside the person. We have also made the fields public so that they are visible outside the class itself:

public class Person : object 
{ 
   // fields 
   public string Name; 
   public DateTime DateOfBirth; 
} 

Note

You can use any type for a field, including arrays and collections such as lists and dictionaries. These would be used if you need to store multiple values in one named field.

In Visual Studio 2017, you might want to click, hold, and drag the tabs for one of your open files to arrange them so that you can see both Person.cs and Program.cs at the same time, as shown in the following screenshot:

In Visual Studio Code, you can click on the Split Editor button or press Cmd + \, and then close...