Execute Javascript/Jquery upon partial content loading

Question

Execute Javascript/Jquery upon partial content loading

From what I can see, most of the examples and answers show how to run a partial's JavaScript when the page initially loads.

In this case, the partial doesn't load until later, triggered by a button click using AJAX.

I have experimented with placing my JS code inside:

$(document).ready(function () {

AND :

$(function(){

AND :

By itself

The first method doesn't work at all. The second and third methods seem to trigger only on the second page load. This is likely because the div that my JavaScript affects does not exist initially. So my question remains: How do I make it run when the partial loads?

c#javascript ajax asp.net-mvc asp.net-mvc-4

Answer 1

Answer №1

$(document).ready(function () {
    ...
});

When the page is loaded, the $(document).ready function will be triggered. This event is connected to either document.DOMContentLoaded or window.loaded events. However, when loading partial content via ajax, the page load event has already occurred by the time the partial is loaded.

If you are using jQuery to load a partial page through ajax, it is recommended to call your function like this:

$ajax(...
}).done(function (data) {
    yourFunction();
});

Alternatively, if you are using the AjaxHelper class (e.g. with razor @Ajax.ActionLink(...)), you can utilize its AjaxOption's OnSuccess or OnComplete property to include your JavaScript function. Here's an example:

@Ajax.ActionLink("Load partial", "MyPartialAction", new AjaxOptions
{
    UpdateTargetId="partialContainer",
    OnSuccess="partialLoaded"
}

This code will load the Partial returned from the MyPartialAction action into the element with the id "partialContainer". After the partial is loaded, your JavaScript function named partialLoaded will be executed.

Answer 2

$(document).ready(function () {
    ...
});

When the page is loaded, the $(document).ready function will be triggered. This event is connected to either document.DOMContentLoaded or window.loaded events. However, when loading partial content via ajax, the page load event has already occurred by the time the partial is loaded.

If you are using jQuery to load a partial page through ajax, it is recommended to call your function like this:

$ajax(...
}).done(function (data) {
    yourFunction();
});

Alternatively, if you are using the AjaxHelper class (e.g. with razor @Ajax.ActionLink(...)), you can utilize its AjaxOption's OnSuccess or OnComplete property to include your JavaScript function. Here's an example:

@Ajax.ActionLink("Load partial", "MyPartialAction", new AjaxOptions
{
    UpdateTargetId="partialContainer",
    OnSuccess="partialLoaded"
}

This code will load the Partial returned from the MyPartialAction action into the element with the id "partialContainer". After the partial is loaded, your JavaScript function named partialLoaded will be executed.

Answer 3

Answer №2

To ensure that a script runs when a partial loads, you should include it in the callback function of the request issuer for the partial content. For example, if the request issuer is using jQuery, the code would look something like this:

$.get(url, function (result) {
    // Add your custom script here within the success callback.
});

If you are utilizing an MVC helper method like Ajax.ActionLink, you can specify a jQuery function to execute upon receiving a response:

@Ajax.ActionLink("NameOfLink", "ControllerAction", new AjaxOptions
{
    HttpMethod = "GET",
    OnSuccess = "javascriptFunction(data)"
})

function javascriptFunction(data) {
    // Implement your desired functionality here
}

Answer 4

To ensure that a script runs when a partial loads, you should include it in the callback function of the request issuer for the partial content. For example, if the request issuer is using jQuery, the code would look something like this:

$.get(url, function (result) {
    // Add your custom script here within the success callback.
});

If you are utilizing an MVC helper method like Ajax.ActionLink, you can specify a jQuery function to execute upon receiving a response:

@Ajax.ActionLink("NameOfLink", "ControllerAction", new AjaxOptions
{
    HttpMethod = "GET",
    OnSuccess = "javascriptFunction(data)"
})

function javascriptFunction(data) {
    // Implement your desired functionality here
}

Execute Javascript/Jquery upon partial content loading

Answer №1

Answer №2

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