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Lesson 6 - E-shop in ASP.NET Core MVC - Flash messages for users

In the previous lesson, E-shop in ASP.NET Core MVC - User management, we prepared registration and user login. In today's tutorial, we're going to use ASP.NET Core to make a system displaying messages to our users. We'll also handle exceptions globally using filters.

Messages preview in the ASP.NET Core MVC e-shop

FlashMessage class

Because we should only use messages in the application layer, let's add the necessary classes to the MVC project. We'll create a Classes folder for them and add a new FlashMessage class in it. We'll distinguish the messages by type visually (information, success, warning, and error). First, we'll create a list of all the message types as an enum:

public enum FlashMessageType

It's probably not a problem to have the enumerated type and the class itself in one file, of course you can separate these as well. The FlashMesage class will be very simple:


...End of the preview...
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Article description

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In this C# tutorial, we'll create a FlashMessage class, add extension methods for the Controller and HtmlHelper, handle exceptions globally by a filter.

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Article has been written for you by Martin Petrovaj