Triggering a 'RegisterStartupScript' call resulted in an 'Object expected' error

Something strange is happening here.

Let me explain the situation:

I have a page with a usercontrol used for popups. This usercontrol has a placeholder where I can load any other usercontrol dynamically inside the popup. Everything works smoothly thanks to ajax updatepanels.

One of the dynamically loaded usercontrols contains the following javascript declaration:

<script type="text/javascript">
function setup(){
    alert("test");
}
</script>

In the codebehind, there's a method that includes this line:

ScriptManager.RegisterStartupScript(this, this.GetType(), "setup" + Guid.NewGuid().ToString(), "setup();", true);

The reason for adding a Guid is to prevent issues if the method is called multiple times.

This method is connected to a button. It works perfectly in Firefox but throws a Javascript error in IE8 saying:

"Object expected" on line 197910701 char 1

It's impossible to debug it as that line doesn't actually exist - any suggestions?

Answer №1

Encountering the same error led me to seek out a solution here. Upon further investigation, I discovered that the issue (in my case) was rather simple ... the javascript function I was attempting to call within my server-generated "<script>" tag was actually non-existent due to a typographical error. Although it has been two months since your initial post, this information may prove helpful for others who come across this problem.

Answer №2

One possible reason for this issue could be that the function is declared after the closing tag. For RegisterStartupScript to function correctly (and locate the JavaScript function), the function must be declared before or within the form tags, and not after the closing tag (as this may result in an "Object expected" error).

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

What is the most efficient method to convert objects array A to objects array B using JavaScript?

Here is an example of object array A: [ { "Timestamp": "2015-10-01 00:00:00", "Label": "Voltage", "Value": "230.12" }, { "Timestamp": "2015-10-01 00:00:00", "Label": "Frequency", "Value": "50.12" ...

What is the best way to combine a string with a variable in sass?

Is there a way to merge a string and a variable in Sass to form a variable name that is already present? $size: "sm"; $button-sm: 1rem; $buttom-md: 1.5rem; body { font-size: $button-#{$size}; } The desired output is: body { font-size: 1r ...

What is the best way to dynamically update a specific value within an object based on the current state in React/Next?

I have implemented a Context API where an object is set, and when the user clicks, the state changes. I need to update a specific value with the new state value. const initialState = { notification: false, setting: false, profile: false, } exp ...

Is it possible for Typescript to resolve a json file?

Is it possible to import a JSON file without specifying the extension in typescript? For instance, if I have a file named file.json, and this is my TypeScript code: import jsonData from './file'. However, I am encountering an error: [ts] Cannot ...

Tips for setting up offline alerts using a progressive web application

I have been working on implementing reminder notifications for my progressive web app, which was originally built as a Nextjs site. The specific criteria I need to meet are: Functionality even when the device is offline Accurate notifications within secon ...

Iterate over each row in order to retrieve the values of dynamically created input fields

Currently, my code involves PHP, JSP, and JSON. I need to extract the values from textboxes so that I can insert them into the database. Specifically, I am dealing with a table that stores information about siblings. Since the number of siblings varies, I ...

Steps for appending an object to a list in a database using the API's POST request method

There are 2 classes defined below: public class User { [Key] public int UserId { get; set; } public string Username { get; set; } public string FirstName { get; set; } public string LastName { get; set; } public ICollection< ...

Updates in .net modify values prior to the file being downloaded as a Word document

After dynamically filling my page values with jQuery, I am trying to generate a Word file. However, when the Word file is created, it does not reflect the new values brought in by jQuery. Here is the ASPX code: <form runat="server"> <asp:Label r ...

Tips for showing an image retrieved through an AJAX response

$.ajax({ url: "https://developers.zomato.com/api/v2.1/search?entity_id=52&entity_type=city&start=0&count=20", dataType: 'json', async: true, beforeSend: function (xhr) { xhr.setRequestHeader('user-key&apos ...

Implement pre-save middleware in Mongoose to perform lowercase validation on a document's

In order to have a user object maintain case sensitivity for display purposes, while being lowercased for uniqueness purposes, I initially considered adding a usernameDisplay property to the schema with a pre-save hook: var userSchema = new Schema({ u ...

Invoking a static method within a cshtml document

I am currently working on implementing a clickable DIV within a vertical tab panel. My goal is to have a specific static method called when the DIV is clicked. Here is what I have done: <div class="tabbable tabs-left"> <ul class="nav nav-tabs"> ...

What are the alternatives to invoking a server-side C# method from JavaScript without using a WebMethod or UpdatePanel?

I am looking for alternatives to using an update panel. The common WebMethod approach is causing errors with the code below: private string currentHtml() { StringWriter str_wrt = new StringWriter(); HtmlTextWriter html_wrt = new Htm ...

Error in Angular: Trying to read properties of an undefined value, specifically 'classList'

I am attempting to utilize intersection observer in order to apply a class to certain text once it crosses a specific trigger point. Although I have confirmed that my observer is functioning properly as some text changes to blue, there are other texts tha ...

Issue with md-stretch-tabs in Angular-Material causing a problem

I am in the process of developing an Angular-based application. ISSUE: I included md-stretch-tabs in my md-tabs element, but when I switch to tab#2, the tab retracts as if there is not enough space to flex. Is this problem related to dependencies or the c ...

What is the best way to retrieve the border-color inline style using jQuery?

I have a HTML tag like this. <span id="createOrderFormId:accountNo" style="border-color: red;"><</span> To retrieve the style value for the border-color property, I tried using the following jQuery code: $( document ).ready(function() { ...

relocate the figcaption below the image on mobile devices

Currently, I am in the process of updating an old website to make it responsive, and I have encountered several challenges along the way. My goal is to have the fig captions displayed on the right side in the desktop version, but underneath the figure in ...

Identifying the chosen label: A guide for determining the selection

In my div, there are multiple labels that the user can interact with. They have the option to edit the label or change the font after clicking on it. If a user wants to change the font size, they simply need to click on the label and then select the desir ...

Developing a custom camera system for a top-down RPG game using Javascript Canvas

What specific question do I have to ask now? My goal is to implement a "viewport" camera effect that will track the player without moving the background I am integrating websocket support and planning to render additional characters on the map - movement ...

Vue error: Uncaught promise rejection - RangeError: The computed value update has exceeded the maximum call stack size

My computed code snippet: computed: { display: { get() { return this.display }, set(newValue) { this.display = newValue } } }, Attempting to update the computed value from a function in ...

Unable to attach the script to recently added DOM elements

After spending considerable time working on this, I'm still unable to figure it out. You can find the page I am referring to at: The "show more" button at the bottom triggers additional posts to be displayed on the page using the following script: ...