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Learn how to efficiently reload elements in your ASP.NET application using jQuery after an AJAX post without refreshing the entire page.
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This video is based on the question https://stackoverflow.com/q/68606630/ asked by the user 'Niklas' ( https://stackoverflow.com/u/16557306/ ) and on the answer https://stackoverflow.com/a/68606710/ provided by the user 'Louys Patrice Bessette' ( https://stackoverflow.com/u/2159528/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Efficiently Reloading Page Elements with jQuery

In modern web development, speed and user experience are of utmost importance. When building a single-page application, like those implemented using ASP.NET, it becomes essential to update parts of the webpage dynamically without requiring a full page reload. This guide addresses a common challenge faced by developers when trying to reload only a part of a webpage after performing an AJAX request, such as a form submission. Here, we'll explore how to refresh user credits displayed in the navigation bar without reloading the entire page.

The Problem: Updating User Credits

Imagine you have a webpage where users can purchase credits to enhance their experience. When a user submits a form to buy credits, you'd want to reflect the new total of credits instantly without navigating away from the page or reloading it entirely. A typical flaw in such scenarios involves using location.reload();, which disrupts the user experience by refreshing the entire page instead of just the necessary elements.

Consider the following HTML structure for displaying user credits:

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The requirement is simple: after a user purchases credits, the updated value of credits must appear in the navbar without a full page refresh.

The Solution: Using AJAX to Update Contents Dynamically

To achieve this, we can structure our solution by creating a dedicated function that retrieves user credits and invokes it from multiple places – specifically during the initial page load and after a successful form submission.

Step 1: Create a Function to Fetch User Credits

Define a function, say get_credits(), that will handle the AJAX GET request to retrieve and display the current credits. Here's how you can structure it:

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This function fetches user credit information and updates the content of the # userCredits element.

Step 2: Modify the Form Submission Handler

Next, you need to adjust your existing AJAX POST request for processing credit purchases. Rather than reloading the entire page, call your get_credits() function once the credits have been updated successfully:

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Step 3: Initialize on Page Load

Finally, ensure you call get_credits() when the page initially loads to populate the user credits immediately:

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Conclusion

By invoking the get_credits() function both on page load and after a successful purchase, you create a responsive and user-friendly interface that updates dynamic content seamlessly. This way, users always see the most accurate information without annoying disruptions caused by full page reloads.

Implementing this approach helps enhance user experience in your ASP.NET applications, keeping users engaged and informed in real-time.

With just a few lines of JavaScript, you can revolutionize how your single-page application interacts with users, leading to a smoother, more professional feel. Happy coding!