Rendering a Javascript file in a Partial View using .Net MVC

Question

Rendering a Javascript file in a Partial View using .Net MVC

I am encountering an issue with loading a partial view where, upon the second load, the modal window attempts to load the JavaScript file again. This results in errors due to variables being declared multiple times.

Here is the code for the Partial View Controller:

[AllowAnonymous]
public ActionResult _ClaimDetail()
{
    return PartialView();
}

JavaScript call to load modal:

$(buttonCharge).ModalPersonalize('show', urlController, 'rebuild title');

PartialView Modal cshtml:

<div class="modalbody">

</div>
<div class="modalbuttons">

</div>
</div>
<script src="@Url.Content("~/JavacriptLogicModal.js")" type="text/javascript"></script>

The error only occurs when opening the modal for the second time. How can I resolve this issue and ensure the JavaScript file is rendered once?

I have tried implementing various validations but none have been successful so far.

javascript c#.net asp.net-mvc partial-views

Answer 1

Answer №1

To address the issue of redundant JavaScript errors occurring when reopening the modal window, caused by the script being loaded multiple times, you have a few options at your disposal:

1. Load the Script Once in the Overall Layout Instead of loading the script within each partial view, consider including it in the main layout file or the specific view that initiates the modal window. This way, the script will only be loaded once and remain accessible throughout your page's lifecycle.

 <!-- Include this in your layout or primary view --> <script src="@Url.Content("~/JavascriptLogicModal.js")" type="text/javascript"</script>

2. Verify if the Script has Already Loaded You can implement a check before loading the script to ascertain whether it has already been loaded. By doing so, you can prevent the script from being redundantly loaded.

if (typeof YourVariableOrFunctionName === 'undefined') {
var script = document.createElement('script');
script.src = '@Url.Content("~/JavascriptLogicModal.js")';
document.head.appendChild(script);}

Answer 2

To address the issue of redundant JavaScript errors occurring when reopening the modal window, caused by the script being loaded multiple times, you have a few options at your disposal:

1. Load the Script Once in the Overall Layout Instead of loading the script within each partial view, consider including it in the main layout file or the specific view that initiates the modal window. This way, the script will only be loaded once and remain accessible throughout your page's lifecycle.

 <!-- Include this in your layout or primary view --> <script src="@Url.Content("~/JavascriptLogicModal.js")" type="text/javascript"</script>

2. Verify if the Script has Already Loaded You can implement a check before loading the script to ascertain whether it has already been loaded. By doing so, you can prevent the script from being redundantly loaded.

if (typeof YourVariableOrFunctionName === 'undefined') {
var script = document.createElement('script');
script.src = '@Url.Content("~/JavascriptLogicModal.js")';
document.head.appendChild(script);}

Rendering a Javascript file in a Partial View using .Net MVC

Answer №1

Similar questions

Modify intricate data types without the need for encapsulation

Upgrading email functionality: Combining PHP mail() with AJAX

When utilizing an API to render text into a div, the offsetHeight function may return 0

Can a <Link> be customized with a specific condition?

Using jQuery, is there a way to move an element from one div to another, but only if the destination div is currently empty

A guide on utilizing the index column for multiple tables using just one statement in the datatable js library

When it comes to .NET Core, middleware fails to process incoming requests

The function react.default.memo is not recognized at the createSvgIcon error

How can we choose the best set of samples to accurately represent a curve with a fixed number of samples?

Optimal Strategy: Utilizing Spring Boot for Backend Development and jQuery for Frontend Interface

What is the purpose of using route('next') within ExpressJS?

Tips on utilizing the enter key to add my <li> element to the list?

Is there a way to ensure that a statement will not execute until the completion of a preceding function?

What is the best way to show a table with 100% width in the Chrome browser?

Retrieving JSON data by key through ajax does not show the expected output

What CSS property prevents a fixed header from overlapping a scrolled element?

Is there a way to retrieve the filename of a file uploaded using a shiny fileInput function?

Display JSON data values using jQuery

Utilizing the Vuetify pagination feature in your project

Ways to prevent the Layout component from rendering on the NextJS login page