Скачать или смотреть How to Use Two Different Buttons in ASP.NET MVC

Learn how to effectively handle multiple button clicks in an ASP.NET MVC project by using different controller methods or parameters.
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This video is based on the question https://stackoverflow.com/q/68248915/ asked by the user 'Vüsal Mammadli' ( https://stackoverflow.com/u/15407525/ ) and on the answer https://stackoverflow.com/a/68249171/ 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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Handling Multiple Button Clicks in ASP.NET MVC

If you’re working with an ASP.NET MVC project and need to differentiate actions triggered by two different buttons on the same form, you’re in the right place! This guide will guide you through the process step-by-step, equipping you with the knowledge to implement this functionality seamlessly in your application.

Understanding the Problem

Let’s start by understanding the scenario: You have a controller called MessageController with an HttpGet method to render a form, and an HttpPost method to handle form submissions. Your challenge is to determine which button was clicked when the form is submitted. This allows you to perform different operations based on user input.

Example Controller Structure

Here's an overview of the controller structure you're working with:

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Solution Overview

There are two primary methods to achieve this functionality: Parameter Binding or Separate Endpoints. Let’s dive into each option.

Option 1: Parameter Binding

Create a Post Model:
To handle actions from both buttons using a single endpoint, you can introduce a new parameter in your post method that identifies which button was clicked. This can be achieved by wrapping your parameters in a custom model.

Here’s an example of a post model that includes the Message object and a ButtonId:

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Update Your View:
Now, in your view, adjust the buttons to send specific button IDs when clicked. For instance:

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Modify Your Controller Logic:
Finally, modify your HttpPost action to check the value of ButtonId and perform the appropriate operation:

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Option 2: Separate Endpoints

If you prefer a cleaner separation of concerns, you can implement two separate HttpPost methods for each button's action.

Add a New Method to Your Controller:
Here’s an example of adding another HttpPost endpoint:

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Adjust Your View:
Ensure each button is pointing to the correct action in your controller. This can be done using the form's action attribute or by specifying it in your button:

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Conclusion

Now you have a clear understanding of how to differentiate between button clicks in your ASP.NET MVC application! Whether you choose to use a single endpoint with parameter binding or separate endpoints for clarity, both methods are effective and depend on your application's design preference. Implementing this will help streamline user interactions and enhance your application's functionality.

Feel free to reach out if you need further clarification or assistance with your ASP.NET MVC projects!