.NET Tutorials, Forums, Interview Questions And Answers
Welcome :Guest
Sign In
Register
 
Win Surprise Gifts!!!
Congratulations!!!


Top 5 Contributors of the Month
Easy Web
Imran Ghani
Post New Web Links

Using JQuery to perform Ajax calls in ASP.NET MVC

Posted By: Amit Mehra     Posted Date: March 22, 2010    Points: 2   Category :JQuery
 
The muscle behind the actual asynchronous calls comes from JavaScript. I looked around at a bunch of existing JavaScript libraries and settled on JQuery because of the way it leverages existing CSS knowledge. The three things that the library should do easily are:


View Complete Post


More Related Resource Links

Securing AJAX Calls from JQuery (Looking for ideas, suggestions, best practices).

  

Hello,

I am working on web application in which all of the data I am submitting back to the server is being done on the client side using JQuery AJAX calls to my .NET web services using JSON.  This works perfectly to enhance my user experience and greatly reduces post backs, etc.

What I am looking for suggestions on is securing the web services being exposed to the client side from being used by anything but my JQuery code on my site.  The security hole that I see here is that since the client-side JQuery can access the web services, so could anything.

Any ideas?  What is the best practice here?

Thanks


Multiple AJAX calls in JQuery

  

I am trying to make 2 separate AJAX calls using buttons. What I want to happen is: when Button1 is clicked ProductsTable shows data from the webservice; when Button2 is clicked OthersTable shows its own data from the webservice. But right now, when either button is clicked, nothing shows up. I know the code works if there's only one of them and it's not wrapped around a .click function.

No error messages. ASP.NET 4.0, JQuery 1.4.4. Not using ScriptManager. Not using UpdatePanels.

Code below:


<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default2.aspx.vb" Inherits="Default2" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <script src="Scripts/jquery-1.4.4.js" type="text/javascript"></script>
    <script src="Scripts/jquery.tmpl.js" type="text/javascript"></script>
    <script id="ProductsTemplate" type="text/x-query-tmpl">
        <table id="ProductsTemplate">            
            <thead>
            </th

jQuery $(document).ready() and ASP.NET Ajax asynchronous postback

  
Many call it the ASP.NET jQuery postback problem, but using the technique below should make it no problem anymore. $(document).ready() isn't called after an asynchronous postback. What this means? You lose the functionality that should be executed within $(document).ready() after an UpdatePanel rendered its contents after an asynchronous postback.

Making Ajax Callbacks to the Server Using jQuery with ASP.NET

  
In the first part of this article series I introduced jQuery's functionality and how it provides a rich client side programming model. This time around I'll expand on these concepts and show you how you can use jQuery in combination with ASP.NET using it as an AJAX backend to retrieve data. I'll also discuss how you can create ASP.NET controls and otherwise interact with jQuery content from ASP.NET pages in WebForms.


jQuery is just a JavaScript library so it will work seamlessly with ASP.NET both from page code as well as through backend driven code using the Page.ClientScript object or ScriptManager. You can use jQuery on its own as a client side and Ajax library that communicates with ASP.NET or you can use jQuery in combination with ASP.NET AJAX. The two actually complement each other quite well as jQuery provides functionality that the ASP.NET AJAX library does not and vice versa. For the most part the interaction between the two libraries is trouble free except for a few very rare edge cases.

Using jQuery to directly call ASP.NET AJAX page methods

  
Here I am looking to explain how to call page methods using jQuery. Using jQuery to directly call ASP.NET AJAX page methods

Use jQuery and ASP.NET AJAX to build a client side Repeater

  
By sending only data to the client, you can profoundly reduce the size of what you send and see a substantial increase in performance. You also allow yourself the ability to easily add features like light-weight sorting and paging on the client. This can not only improve your users' experience, but reduce server load and bandwidth requirements.

jQuery live() and ASP.NET Ajax asynchronous postback

  
The issue is that normally $(document).ready() is called when the DOM is ready to be manipulated. But this doens't happen after an ASP.NET Ajax asynch postback occurs.

This means that the initial jQuery bindings won't be automatically available after the asynchronous postback is over. I underline "automatically" here because my last post describes more possibilities, how this issue can be worked around.

Use jQuery and ASP.NET AJAX to build a client side Repeater

  
By sending only data to the client, you can profoundly reduce the size of what you send and see a substantial increase in performance. You also allow yourself the ability to easily add features like light-weight sorting and paging on the client. This can not only improve your users' experience, but reduce server load and bandwidth requirements.

To that end, I'm going to walk you through these four steps to effectively implementing a client side Repeater, using ASP.NET AJAX and jQuery:

Use jQuery and ASP.NET AJAX to build a client side Repeater

  
By sending only data to the client, you can profoundly reduce the size of what you send and see a substantial increase in performance. You also allow yourself the ability to easily add features like light-weight sorting and paging on the client. This can not only improve your users' experience, but reduce server load and bandwidth requirements.

JQuery Treeview plugin is not working with Ajax page load in ie8

  

Hi there,

I developed a page where i m using jquery treeview plugin to generate tree. It worked fine on FF, IE8 with out ajax.

But when my page loads thro' ajax call in IE8, it is not collapsing or expanding tree.


Any idea?

Thanks in advance.



Cutting Edge: Predictive Fetch with jQuery and the ASP.NET Ajax Library

  

Dino Esposito builds upon his exploration of new data binding features coming in the ASP.NET Ajax Library, explaining how to implement the predictive fetch design pattern.

Dino Esposito

MSDN Magazine February 2010


Extreme ASP.NET: Client-Side Web Service Calls with AJAX Extensions

  

Microsoft AJAX Library and the ASP.NET 2.0 AJAX Extensions provide a number of compelling features ranging from client-side data binding, to DHTML animations and behaviors. Learn all about them here.

Fritz Onion

MSDN Magazine January 2007


Jquery Ajax Call to Mvc Action tips.

  

I try to do a ajax call via the jquery api.

The scritp :

$("#sortColumn").click(function(e) {
                var columnName = $(this).attr('name');
                var sidx = columnName;
                var sord = '<%= (string)ViewData["sord"] == "asc" ? "desc" : "asc"%>';
                //alert(sord);
                var page = '<%= ViewData["page"] %>';
                var rows = "5";
                
                $.ajax({
                type: "POST",
                url: "/Mailings/GetData2",
                data: {'sidx': sidx ,'sord': sord ,'page': page ,'rows':  rows },
                contentType: "application/json; charset=utf-8",
                dataType: "json",
                success: function(response) {
                var jsonObject = (typeof response.d) == 'string' ? eval('(' + response.d + ')') : response.d;
                                    },
                error: function(xmlHttpRequest, textStatus, errorThrown) {
                    document.getElementById('infoContentHeader').innerHTML = xmlHttpRequest.responseText;
                }
            });

            });


And the

Asp.net ajax+ Jquery: EndRequestHandler(sender, args), how to specify sender and args

  

Hi,

I am working on asp.net, addon with JQuery.

After registering endRequest inside ready() function of Jquery.

jQuery calls asmx web service

  
I have a jQuery method that calls a .asmx web service.  the jquery method only executes one time but the web serivce executes multiple times.  Is there a way this could happen or ways to debug this beyond breakpoints in the c# code and alerts in the jQuery.

How to get jquery/ajax parameters on the server

  
Hi, It is my code: $.ajax({            type: "POST",              url: "Default.aspx",              data: "category=2&city=Boston",              contentType: "application/json; charset=utf-8",              dataType: "json",              processData :false,              error: function (json) {                  alert(json.statusText);              },              success: function (json) {                  alert(json.statusText);                }          });  How can I get my parameters(category,city) on the server? Request's parameters is always null.   Thanks, katzraya

Ajax/Jquery code on UserControls

  
Hello,I have some user controls where I would like to add some javascript that uses Ajax and Jquery technology. Also these scripts should use Sys.WebForms.PageRequestManager.getInstance().add_endRequestand other functions of the Ajax framework.In the past I have added the related code to the hosting aspx page but it becomes a problem when re-using the same control in multiple aspx.Which are the best practice to follow in this case?Regards
Categories: 
ASP.NetWindows Application  .NET Framework  C#  VB.Net  ADO.Net  
Sql Server  SharePoint  Silverlight  Others  All   

Hall of Fame    Twitter   Terms of Service    Privacy Policy    Contact Us    Archives   Tell A Friend