The web method is not activated

My initial endeavor to call a server-side function from JavaScript is not yielding results as the webmethod is not being invoked.

Within the aspx file, there is a bootstrap-styled button; upon clicking it, the objective is to append a new entry to the user's "Favorites" list (inserting a record in the database).

The page inherits from a master page which includes:

<asp:ScriptManager runat="server" ID="ScriptManager1" EnablePageMethods="true" />

The aspx page includes:

<script type="text/javascript">
function addFavorite(url, friendly) {debugger
    PageMethods.AddFavorite(url, friendly, onSuccess);
}
function onSuccess(result, userContext, methodName) {debugger
    alert(result);
}
</script>

<button type="button" class="btn btn-primary btn-xs" onclick="addFavorite('some_url', 'some friendly name');">
<i class="fa fa-heart-o" aria-hidden="true"></i>Favorites</button>

In the code-behind:

[WebMethod]
public static string AddFavorite(string sURL, string sFriendlyName)
{
    // This is where a record would be added to a DB table, but for testing ...
    return sFriendlyName;
}

Upon clicking the button, addFavorites() is triggered followed immediately by onSuccess, skipping the web method and displaying part of the page source in an alert box.

Despite researching extensively, I'm unable to pinpoint the issue. All examples I've found follow the same steps I've taken.

Answer №1

After testing it on my personal computer, I discovered that the script module had not been registered in the modules section of the web.config!

To ensure it works correctly, make sure to include the script module in your web.config as shown below:

<system.webServer>
          <modules>
           <!-- *...other registered modules..* -->
           <add name="ScriptModule" preCondition="integratedMode" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
           </modules>
    </system.webServer>

Update

Ensure that FriendlyUrlSettings.AutoRedirectMode is set to Off, otherwise the page method request will result in a 401 UnAuthorized error. The code should be configured like this in the RouteConfig:

public static class RouteConfig  
{  
    public static void RegisterRoutes(RouteCollection routes)  
    {  
        var settings = new FriendlyUrlSettings();  
        settings.AutoRedirectMode = RedirectMode.Off;  
        routes.EnableFriendlyUrls(settings);  
    }  
}  

If you wish to keep Friendly URLs, you can create your own friendly URL resolver that inherits from WebFormsFriendlyUrlResolver as shown below:

public static class RouteConfig
{
    public static void RegisterRoutes(RouteCollection routes)
    {
        var settings = new FriendlyUrlSettings();
        settings.AutoRedirectMode = RedirectMode.Permanent;
        routes.EnableFriendlyUrls(settings, new WebMethodFriendlyUrlResolver());
    }
}

public class WebMethodFriendlyUrlResolver : WebFormsFriendlyUrlResolver
{
    public override string ConvertToFriendlyUrl(string path)
    {
        if (HttpContext.Current.Request.PathInfo != string.Empty)
        {
            return path;
        }
        else
        {
            return base.ConvertToFriendlyUrl(path);
        }
    }
}

If friendly URLs are enabled, ensure to update the JavaScript callback function to include the .aspx extension explicitly in the path:

function addFavorite(url, friendly) {  
        PageMethods.set_path(PageMethods.get_path() + '.aspx');  
        PageMethods.AddFavorite(url, friendly, onSuccess, onError);  
}  

Answer №2

Try implementing an onFailure method to see if it triggers. It may not be necessary, but worth checking. Edit: It seems like the code works fine without it.

Just confirming, are those JavaScript functions enclosed within script tags? I assume they are since the 'success' function is working, but just double-checking.

Also, make sure you have the 'using System.Web.Services;' statement in the code behind. It is essential for proper functionality.

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

How to Process a Stripe Payment using jQuery AJAX (JavaScript Only)

I'm in the process of creating a custom payment form for Stripe and I want to manually initiate the AJAX call to connect with Stripe. Instead of relying on a typical submit event. Unfortunately, it seems like I might be sending the request to the inc ...

C# filling multiple cells with data from an array

I have an array containing six numbers. I want to apply a specific equation to each number in the array and then display the result in a set of textboxes, corresponding to their position in the array. For example, the result of the equation for index 0 in ...

Tips for receiving live updates of active users online with the help of Mongoose and socket.io

I have been working on developing an app that covers various topics. Each topic has online users, and I am using express/socket.io/mongoose for the backend and flutter for the frontend. Currently, I am facing a challenge in displaying real-time informatio ...

Ways to display console.log output in VS Code?

Sorry if this question is a bit unclear, but I'm struggling to figure out how to display the results from my console.log (line 14) in the console/terminal. I want to see the random RGB values generated for each column every time I click the button, bu ...

Is there a way to invoke a JavaScript function specifically for a given link?

I am trying to make the JavaScript only apply to a specific A LINK (#tornado,_bar -> ul -> li -> a links) when clicked, but it is applying to all A links. How can I specify the particular link in the JS? The JavaScript code is not functioning cor ...

Let's discuss how to include the scrollTop option

I am new to coding and I need help adding a scrollTop margin of +100px to my code. The page already has some top margin but I can't seem to locate it. I'm also having trouble finding where the margin-top is being set in the JavaScript file. /*** ...

arrange elements by their relationship with parents and children using typescript and angular

Here is a list that needs to be sorted by parent and child relationships: 0: {id: 7, name: "333", code: "333", type: 3, hasParent: true, parentId: 4} 1: {id: 6, name: "dfgdfg", code: "dfgdfg", type: 3, hasParent: false, parentId: null} 2: {id: 5, name: ...

Using the default theme in Material UI5

Could someone please explain how to pass in the default theme in Material UI5? In Material UI6, I used to do it like this: const useStyles = makeStyles((theme) => ({ home: { display: "flex", paddingTop: "8rem", width: ...

I am interested in using an image upload box that includes a hidden input field. However, I have encountered issues with the functionality when the input field is hidden. Does anyone have any suggestions on how

I have limited experience and need some assistance with resolving this particular issue. I am looking to create an image upload box that works when clicked on the input field. Thank you in advance. function readURL(input) { if (input.files && ...

Troubleshooting URL Problems with Node.js Search and Pagination

My results page has pagination set up and the routes are structured like this: app.get("/results",function(req,res){ query= select * from courses where // this part adds search parameters from req.query to the sql query// Object.keys(req.query.search).for ...

The Firebase signInWithPopup functionality suddenly shuts down in a Next.js project

Incorporating the signInWithPopup function for signing in has been successful during the development stage on my local server. const firebaseAuth = getAuth(app); const provider = new GoogleAuthProvider(); const [{ user, cartShow, cartItems }, dispatc ...

Display and conceal frequently asked questions using JQuery

I'm currently facing an issue with using JQuery to toggle between showing and hiding content when a user clicks on a specific class element. Here is my HTML code: <div class="faqSectionFirst"> Question? <p class="faqTextFirst" style=' ...

The button fails to log any text to the developer console

Attempting to verify the functionality of my button by logging a message on the developer console. However, upon clicking the button, the text does not appear in the console. import { Component, EventEmitter, Input, Output } from '@angular/core'; ...

Modify the text of a button depending on the condition and user interaction within an ng-repeat loop in AngularJS

I have a scenario where I am displaying a list of users with two buttons for Start and End using the ng-repeat code: <div class="list-group" ng-repeat="patient in patients" > <a href="#" class="list-group-item" ng-click="chat ...

Hide the scroll bar in html/css while keeping the functionality of the arrows intact

Is there a way to remove the scroll bar but still be able to access overflown data using arrows? Any assistance would be greatly appreciated. Thank you in advance. ...

Tips on storing the amount of time a user devotes to answering questions on my form into a database

I am facing an issue with storing the "duration" in my database. The "duration" I aim to store is the time spent by the user answering a question I created. When they click the submit button, I want to save the duration they spent in the database. Below i ...

What methods are available for modifying nodes generated dynamically?

I have been on a quest for quite some time now to find a way to manipulate HTML content that has been dynamically added. Initially, I fetch a cross-domain website using getJSON: $.getJSON('http://whateverorigin.org/get?url=' + encodeURIComponent ...

Ways to confirm the validation of radio buttons in a form and implement CSS

I am having trouble adding validation to a form with radio buttons displayed as labels. I want to show a red border around the radios/labels or outer div when a radio button hasn't been checked before the user submits the form. I have attempted this ...

Tips for retrieving the MenuItem name upon click event using Menu and MenuItem components in Material UI React

Utilizing MaterialUI's Menu and MenuItem components in a React project, I am looking to display the name of the menu item upon clicking on it. Upon inspecting event.currentTarget in console.log, it returns the entire list item: ListItem Image attache ...

Troubleshooting issue: jQuery AJAX failing to call ASP.NET Web Service with parameters

JavaScript: const paramStr = $('#id1').val() + '|' + $('#id2').val() + '|' + $('#id3').val(); const jsonParam = '{"searchCriteria": "' + paramStr + '"}'; $.ajax({ type: ...