Issue with RegisterClientScriptCode function following a partial postback

In a SharePoint website, the code below is contained within a user control:

ScriptManager.RegisterClientScriptBlock(this, this.GetType(), "jquery144", "<script type=\"text/javascript\" src=\"/_layouts/Unicre.Web.RUOnline.Controlos/Scripts/jquery-1.4.4.min.js\"></script>", false);
ScriptManager.RegisterClientScriptBlock(this, this.GetType(), "javascriptgeral", "<script type=\"text/javascript\" src=\"/_layouts/Unicre.Web.RUOnline.Controlos/Scripts/javascript.js\"></script>", false);

Why is it not functioning as expected? Additionally, I cannot locate the corresponding script tags in the HTML output of the response.

The issue seems to be related to an update panel. When there is a partial postback, the Javascript ceases to work. Is this behavior supposed to happen despite using the above code?

(I also attempted to use the RegisterClientScriptInclude method with no success.)

javascriptasp.netsharepoint-2010updatepanel

Answer №1

If you are experiencing issues with functionality after a partial postback, it may be because the scripts need to be registered on Page_Load. Within your user control, make sure to attach to the Load event and call ScriptManager.RegisterClientScriptBlock() from that handler.

It's important to note that after a partial postback, the Javascript may stop working.

During an UpdatePanel partial postback, there is a DOM update of the UpdatePanel <div> contents. As a result, the previous content gets replaced causing any inline script within the <div> to lose its state.

To learn more about this issue, check out this resource:

The UpdatePanel works through the client using the innerHTML DOM property. A delta from the server updates the existing DOM by replacing the contents via innerHTML. However, inline scripts do not function in the same manner. Essentially, setting the innerHTML of a DOM element with HTML containing a script block does not trigger the script execution.

Similarly, executing ScriptManager.RegisterClientScriptBlock() during an UpdatePanel update will not mimic a regular page load. While you can include <script> elements directly into the UpdatePanel contents, they will not run.

Update:

To execute JavaScript code after a partial postback, consider implementing an endRequest handler to the PageRequestManager:

<script>
function load() {
   //register the handler
   Sys.WebForms.PageRequestManager.getInstance().add_endRequest(EndRequestHandler);
}
//this handler will execute after a partial postback
function EndRequestHandler(){
   //...arbitrary code...
}
window.onload = load; 
</script>

Similar questions

If you have not found the answer to your question or you are interested in this topic, then look at other similar questions below or use the search

Creating a custom Angular filter to group every 3 items within an iteration into a new div container

When attempting to organize three instances of app-story-preview within a wrapper div using a ngFor loop, I encountered the following code: <ng-template [ngIf]="stories.length > 0" [ngIfElse]="empty"> <cdk-virtual-scroll-viewport [itemSize ...

javascriptangulartypescriptmodulo

I am receiving a reference error even though the day variable has already been defined. Can you kindly point out

When I attempt to log in, the page is giving me the correct output. Interestingly, even after encountering an error, the webpage continues to function properly. app.get("/", function(req, res) { let day = date.getDate(); console.log(day); r ...

javascripthtmlexpress

What is the best way to deploy an ASP .NET application on IIS with complete trust?

We've got this complex industrial system that can be controlled through some C++ DLLs. To make things easier, I created a .NET wrapper in order to manage the system and then integrated this into an ASP .NET web application for remote control access. ...

asp.net.netsecurityiispermissions

Develop your own personalized Angular schematics that produces a file that begins with an underscore

Having trouble with custom Angular schematics file naming. I'm trying to create a theme SCSS file that starts with an underscore followed by a double underscore as a delimiter. For instance, I want the file name to be _mouse-theme.scss, using the nam ...

javascriptangulartypescriptsassangular-schematics

Backbone and Laravel - Choose a squad and automatically create users for the selected team

I've recently started exploring backbone.js and have gone through Jeffery Way's tutorial on using Laravel and Backbone. As of now, I have a list of teams being displayed along with their ids fetched from the database. I have also set up an event ...

javascriptphpbackbone.jslaravel

The current date is cycling back to the month before

There is a datetime received from my api as 2018-09-01T00:00:00.000Z, referred to as frame.scandate. Another date is generated within the program as 2018-09, simply known as scandate. These examples can represent any year/month combination. In my code: ...

javascriptangulartypescriptmomentjs

Why isn't my file being recognized post-multer middleware?

I am currently facing an issue with uploading a filename and a post (similar to 9GAG style) to my MySQL database, and storing the file in my project folder. The front end is able to retrieve the file without any problems (verified through console.log), but ...

javascriptnode.jsvue.jsmulter

Node.js encountering req.body as undefined when using form-data as the content-type

After creating a small demonstration for this form-data passing API, I attempted to test it using Postman. However, I encountered an issue where no data was being retrieved. Code const http = require("http"); const express = require("expres ...

javascriptnode.jsexpressform-data

sending data from a servlet to ajax

Implementing a star-based voting system involves sending an ajax request to update the database through a servlet when a user casts their vote. This is the ajax code used: $.ajax({ type:'GET', contentType: "charset=utf- ...

javascriptjqueryajaxservlets

Deleting JSON files using Discord and Node.js by requiring them from a specific folder

Currently, I am in the process of developing a Discord bot using Node.js. One of the functions within the bot utilizes JSON files to store information about specific entities. I aim to create a command in Discord that, when called with a specific name asso ...

javascriptnode.jsjsondiscord

React Leaflet causing a frequent map refresh due to context value updates

When I use map.on('moveend') to update the list of markers displayed in another component, I encounter a refreshing issue. The context in my project contains two arrays - one filtered array and one array with the markers. When I try to update the ...

javascriptreactjsleafletnext.jsreact-leaflet

Enhancing next-auth and i18n functionality with middleware in the latest version of next.js (13) using the app

Currently, I have successfully set up next-auth in my next.js 13 project with app router, and it is functioning as expected. My next step is to incorporate internationalization into my app following the guidelines provided in the next.js documentation. How ...

javascriptnext.jsnext-auth

Tips for updating a React state while using the history API

In an effort to simplify and stay focused on the problem, I recently wrote a brief piece of code. Within this code, there is a component containing a Dialog that plays a role in a commercial process. This Dialog allows users to input information such as no ...

javascriptreactjsreact-hooksbrowser-history

What could be causing my page width to only expand to 100% when using "fit-content"?

After searching extensively, I'm unable to find a solution that fits my current issue. My goal is to construct a practice ecommerce website using React. One of the components I have is a header which I'd like to occupy 100% of the screen width, c ...

javascriptcssreactjswidth

User information in the realm of website creation

Can someone provide insight on where user data such as photos, videos, and posts is stored? I doubt it is saved in an SQL database or any similar system. ...

javascripthtmlmysqlnode.jsdatabase

What steps should be taken in PHP to display a popup when the user input is found to be invalid?

I've been working on implementing a popup in PHP to show if the user enters an existing username, as per our teacher's requirement to use popUp instead of alert. I have set the visibility property of the popup to "Hidden" in CSS; <div class=&q ...

javascriptphphtml

Using Ajax requests in WordPress

I am working on creating a button that will send an email to the branch of the user who is logged in. To get started with the coding process, I need to ensure that the AJAX call is sent successfully and triggers the 'success' method of the AJAX o ...

javascriptphpajaxwordpress

Issues with Jquery Autocomplete feature when using an Input Box fetched through Ajax requests

When a user selects an option from the drop-down list, an input box is dynamically added to the page using AJAX. document.getElementById("input_box").innerHTML ="<input id='ProjectName'/>"; However, there seems to be an issue with jQuery ...

javascriptphpjqueryajax

Does Transclude eliminate tr and td elements from the content?

I'm encountering an issue with my angularjs application where the tr and td tags are mysteriously disappearing. angular.module('transcludeExample', []) .directive('pane', function() { return { restrict: 'E' ...

javascriptangularjs

Utilize the HTML canvas to sketch on an image that has been inserted

I have a HTML canvas element within my Ionic application. <canvas id="canvas" color="{{ color }}" width="800" height="600" style="position:relative;"></canvas> Within this canvas, I am loading an image. Below is the code snippet from the con ...

javascripthtmlangularjsionic-frameworkhtml5-canvas