Скачать или смотреть How to Automatically Populate the User's Username in Blazor EditForm

Discover a simple solution for automatically inserting the user's username into an `EditForm` when building a Blazor WebAssembly application for your online shop. Improve your user experience without unnecessary input fields!
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This video is based on the question https://stackoverflow.com/q/70676564/ asked by the user 'SleepingInPeace' ( https://stackoverflow.com/u/17468485/ ) and on the answer https://stackoverflow.com/a/70677690/ provided by the user 'enet' ( https://stackoverflow.com/u/6152891/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Automatically Populate the User's Username in Blazor EditForm

If you're new to Blazor WebAssembly and diving into building applications, you might stumble upon situations where you need to enhance user experience while keeping your forms intuitive. One such common scenario is automatically filling in the username of a logged-in user in a form. This is not only practical but also prevents the user from having to manually enter their details each time they create a product.

Here, we'll walk you through a straightforward approach to achieve this functionality when using Blazor's EditForm.

Understanding the Challenge

In your application, you're building a shopping platform where users can add products. Each product needs to be associated with a username - typically, this would be the username of the user who is logged in. In a standard setup, it’s expected that the user submits their username as they fill out the product details. However, this creates an unnecessary step and can lead to potential errors if users enter incorrect usernames.

Current Implementation

Your current EditForm structure looks like this:

[[See Video to Reveal this Text or Code Snippet]]

The Need for Improvement

Currently, the user has to enter their own username manually, which is not user-friendly. Let's improve this by automatically populating the username using the Blazor framework's built-in authorization system.

Solution: Populating Username Automatically

To streamline the process of associating a product with the logged-in user's username, you can utilize the <AuthorizeView> component, which helps in conditionally displaying content based on the user’s authentication status.

Step-by-Step Implementation

Here’s how you can achieve this:

Use <AuthorizeView>: Wrap your EditForm with the <AuthorizeView> component.

Populate the Username: Within the Authorized section, set the username field of newproduct to the currently logged-in user's identity.

Here is a modified version of your code:

[[See Video to Reveal this Text or Code Snippet]]

Key Points:

Read-Only Input: By setting the InputText to read-only using the readonly attribute, you ensure that the user cannot modify their username, reinforcing the integrity of the data.

User Authentication Check: The <AuthorizeView> component only displays the form to authenticated users, while providing options to register or log in for those who aren’t.

Conclusion

By following this approach, you can significantly improve the user experience of your Blazor application, making it easier for users to create products without the hassle of manually entering their usernames.

With a clean and practical implementation, not only will your app feel more professional, but it will also encourage users to engage more with your product listing functionalities.

Happy coding!