How to Successfully Implement CRUD Operations in ASP.NET Core MVC with Kendo UI for jQuery

Discover how to effectively troubleshoot and implement CRUD operations in ASP.NET Core MVC with Kendo UI for jQuery, ensuring smooth data updates and error handling.
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This video is based on the question https://stackoverflow.com/q/68155455/ asked by the user 'Alexandre Hutsulyak' ( https://stackoverflow.com/u/18792575/ ) and on the answer https://stackoverflow.com/a/68158736/ provided by the user 'benuto' ( https://stackoverflow.com/u/16324983/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Introduction: The CRUD Challenge with ASP.NET Core MVC and Kendo UI

If you're developing a web application using ASP.NET Core MVC along with Kendo UI for jQuery, you might encounter challenges when implementing CRUD (Create, Read, Update, Delete) operations. One common issue is with the editing functionality, especially when trying to push changes back to the server and update the database. If you've encountered a similar problem, you're not alone! In this post, we'll explore effective strategies to tackle this issue and ensure your application performs efficiently.

Understanding the Problem

While working with ASP.NET Core MVC and Kendo UI, users often face difficulties with the edit method not transmitting data properly to the controller. This can lead to frustrations, particularly if you're unsure why the data isn't reaching your server-side code. The setup may look fine, but subtle errors can derail the entire operation. Fortunately, solutions are available to streamline this process.

Example Scenario

Imagine you have an Employee Controller set up in your ASP.NET MVC application. Your task is to allow users to edit employee details and ensure those updates are reflected in your database. Your initial code snippets might include functions to handle data reading and updates but still fail to effectively push those updates when changes are made in the UI.

Key Code Snippets

Here's a quick glimpse at the relevant parts of the code involved:

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The code indicates an aspiration to create responsive data interactions, but issues arise particularly in terms of binding data correctly.

Solutions to the CRUD Editing Issue

To resolve issues related to the CRUD operations, particularly with editing and data binding, consider the strategies below:

1. Utilize the [FromBody] Attribute

One immediate step you can take is to make sure that your action methods correctly receive and bind the incoming data from the client. This can be accomplished by using the [FromBody] attribute in your method signature. This approach instructs ASP.NET to deserialize the body of the request into your model.

Revised Code Example:

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2. Clean Up Your Parameters

Investigate your action methods to ensure that unnecessary parameters are removed. For example, in the UpdatePost method, the int id parameter is not being utilized. Simplifying your method signature can help minimize confusion:

Revised Method:

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3. Create a ViewModel

Instead of passing your entire entity directly to the front-end, consider creating a ViewModel to encapsulate only the necessary data for your views. This best practice improves security and performance by reducing potential data exposure.

ViewModel Example:

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

4. Implement Robust Error Handling

As you implement the changes, ensure that you also include error handling mechanisms throughout your application. This step is critical for debugging and maintaining smooth operations. Log errors on both the client and server sides, providing comprehensive information when something goes wrong.

Conclusion

Implementing effective CRUD operations using ASP.NET Core MVC with Kendo UI for jQuery requires thoughtful attention to data-binding strategies. By utilizing the [FromBody] attribute, cleaning up parameters, creating appropriate ViewModels, and incorporating robust error handling, you'll significantly enhance the functionality and reliability of your application.

Now, you can confidently tackle CRUD operations in your web applications, ensuring users have a seamless ex

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