How to use pattern matching in C#

Victoria D. Doty

Pattern matching is a great attribute 1st introduced in C# seven. You can use sample matching on any facts form, even on personalized facts sorts, to extract values from an expression. Pattern matching was enhanced in C# 8, which introduced a huge array of new sample sorts. It was enhanced […]

Pattern matching is a great attribute 1st introduced in C# seven. You can use sample matching on any facts form, even on personalized facts sorts, to extract values from an expression.

Pattern matching was enhanced in C# 8, which introduced a huge array of new sample sorts. It was enhanced even further more in C# nine, with the addition of new relational and sensible styles. This posting talks about the freshly added styles in C# nine and how we can get advantage of them, with code illustrations anywhere acceptable.

To operate with the code illustrations presented in this posting, you should really have Visual Studio 2019 set up in your method. If you really do not by now have a duplicate, you can down load Visual Studio 2019 here.

Generate a console application undertaking in Visual Studio

To start with off, let’s develop a .Net Core console application undertaking in Visual Studio. Assuming Visual Studio 2019 is set up in your method, adhere to the steps outlined under to develop a new .Net Core console application undertaking in Visual Studio.

  1. Launch the Visual Studio IDE.
  2. Click on on “Create new undertaking.”
  3. In the “Create new project” window, decide on “Console App (.Net Core)” from the checklist of templates shown.
  4. Click on Up coming.
  5. In the “Configure your new project” window, specify the identify and spot for the new undertaking.
  6. Click on Generate.

We’ll use this undertaking to explore the new sample matching functions in C# nine in the subsequent sections of this posting.

Relational styles in C# nine

Relational styles empower the use of the relational operators significantly less than <, significantly less than or equal to <=, higher than >, and higher than or equal to >=.

Copyright © 2021 IDG Communications, Inc.

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