May 2026
Intermediate
598 pages
10h 39m
English
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8
Building a Shopping Cart Using Application State
Blazor WebAssembly apps lose state on page navigation since everything runs in browser memory. Use dependency injection (DI) to register a service that persists state across components and survives navigation.
In this chapter, you will build a shopping cart. As you add and delete items from the shopping cart, the application will maintain a list of the items in the shopping cart. The contents of the shopping cart will be retained as you navigate between pages. Also, the shopping cart's running total will be displayed on all the pages.
DI holds the cart,
Pages turn, yet treasures stay.
Singleton's embrace.
In this chapter, I will cover the following topics:
- Application state
- Dependency Injection ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.