Скачать или смотреть How to List All Users in a CRUD Application with Blazor

Discover an effective way to display `all users` in your Blazor Server CRUD application using a DTO approach for optimized data handling.
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How to List All Users in a CRUD Application with Blazor

If you're working on a user management feature in your Blazor Server application, you might be wondering how to list all users effectively. In this guide, we will walk you through how to achieve this with a clean separation of concerns using a Data Transfer Object (DTO).

Understanding the Problem

You've set up a CRUD page to manage users but encountered a hurdle when trying to fetch ApplicationUser objects in your Razor view. Here’s a recap of the key points from your implementation:

You created a controller function to retrieve users from the database.

You called this function from your Razor page to populate the user list.

However, the ApplicationUser type was not recognized in your Razor view, making it impossible to work with the user data directly.

The Solution: Introducing a DTO

The primary issue you're facing is that the ApplicationUser model from the server-side is not directly available on the client side. To solve this, you can introduce a DTO (Data Transfer Object) that acts as a simplified version of ApplicationUser. Let’s break down the steps to implement this solution:

Step 1: Create the ApplicationUserDto

Start by defining a new class that mirrors the necessary properties of the ApplicationUser. This class will only include what you need to display in your CRUD interface.

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Step 2: Modify the Controller

Next, you’ll need to modify your controller to return a list of ApplicationUserDto objects instead of ApplicationUser. Here’s how you can do that:

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Step 3: Update the Razor Page

In your Razor page, you’ll change the type from the original ApplicationUser to ApplicationUserDto. Here’s what that looks like:

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Conclusion

By introducing a DTO, you can easily retrieve and display user information in your Blazor application without running into type recognition issues. This approach not only simplifies data management between the client and server but also enhances the maintainability of your code.

With these steps, your CRUD page is now set up to properly list all users. Utilize this structure for managing other entities within your application for best practices in Blazor development.

Dive into Blazor today and streamline your user management with this effective solution!