ajax

jsp chatting with ajax

Hi sirs, I am writing one web chat program using AJAX (a little bit). It is working when both users open a chat page, but I want to open a window when one user send data to others. ...

How to make search engines find my AJAX content.

I have a page which dynamically loads a section of content via AJAX. I'm concerned that this means the content will not be found by search engines. To show you what I mean, the site is at http://www.gold09.net and the dynamic content is at /speakers.php - Normally no one would visit that second link, it's just loaded into the first page...

Dragging & dropping items from one list to another in a ASP.NET page?

I would like to move items from one list to another on a page, and I'm pretty flexible about what type of a list it is. What's the best way to do that? ASP.NET Ajax? jQuery? Anything else? ...

Receive parameter from request body in WCF/ADO.NET Data Service

I'm tryint to post to a ADO.NET Data Service but the parameters seems to get lost along the way. I got something like: [WebInvoke(Method="POST")] public int MyMethod(int foo, string bar) {...} and I make an ajax-call using prototype.js as: var args = {foo: 4, bar: "'test'"}; new Ajax.Requst(baseurl + 'MyMethod', method: 'POST', ...

ASP.NET AJAX: How to get a client instance created with the $create method?

Hi, Using the client-side ASP.NET AJAX library, I have created an instance of a client component with the $create shortcut-method (http://msdn.microsoft.com/da-dk/library/bb397487(en-us).aspx). The object is attached to a DOM element. Now I need to get a reference to the instance, but it is neither registered on window or on the DOM ele...

How do I "single-instance" an ASP.Net AJAX web portal?

I’ve been asked if we can optionally “single-instance” our web portal. See this post on Hanselman's blog for the same idea in a WinForms app. Suppose we have 2 shortcuts on the same client machine: http://MyServer/MyWebPortal/Default.aspx?user=username&document=Foo http://MyServer/MyWebPortal/Default.aspx?user=username&documen...

What is the best way to serialize SVG from the client DOM?

I am working on interactive SVG/AJAX interfaces where elements are created and repositioned on-the-fly by users. I'd like to support the ability for users to export their current view to a PNG image and/or an SVG document. I'd really like the SVG document to be as simple as possible (without a lot of nested transforms). Is there any fram...

ASP.NET MVC controller actions that return JSON or partial html

I am trying to create controller actions which will return either JSON or partial html depending upon a parameter. What is the best way to get the result returned to an MVC page asynchronously? ...

Prevent redirection of Xmlhttprequest

Is it possible to prevent the browser from following redirects when sending XMLHttpRequest-s (i.e. to get the redirect status code back and handle it myself)? ...

jQuery - Ajax

Hi. In A.ascx I have one DropDownList and one DIV. The DropDownList is populated dynamically. How do I load B.ascx into the DIV, when the user changes the selected index in the DropDownList. This should be done on the client side without postback, by using jQuery and Ajax. Thanks ...

Why is the PopupControlExtender generating a full postback inside an UpdatePanel?

I have a button inside an updatepanel. I have a PopupControlExtender linked to the button so when the button is clicked a panel pops up. It works fine except it does a full postback and I can't figure out why. The button and the PopupControlExtender is inside an update panel which inside the ContentTemplate tag. When I take out the Popup...

Questions on differences from ASP.NET 2.0 to ASP.NET 3.5 MVC

We are moving from regular 2.0 webforms with no testing to TDD MVC I'm looking to find out all the requirements for making the jump from 2.0 to 3.5 MVC. Does SQL Server 2000 work with .net 3.5? Does the MVC Framework come with .net 3.5? How does AJAX work with all this stuff? Is visual studios team suite worth the time/money? ...

Javascript classes and DWR

I've been playing with DWR and converters for a while and I really wanted to map my Java classes to JavaScript classes. Using DWR converters, I have the option to point out what is the name of my JS constructor given a Java class. So far so good... The problem arises when my JS constructor is within a JS package-like name (just like YUI'...

Asp.Net jQuery $.getJSON sometimes causes full page postback?

I'm writing an ASP.NET webforms app, and I'm using jQuery for my AJAX calls. This is working well, but on some occasions, the $.getJSON call is causing a full page postback. I am not using the ASP.NET AJAX library anywhere in the app. I can't reproduce the problem on a consistent basis, and am not sure what is causing it. Here is the jQu...

What's the best way to include html through an ajax echo command?

Hi, I am currently building a small website where the content of the main div is being filled through an Ajax call. I basically have a php script that returns the content like this: (simplified php script...) if(isset($_POST["id_tuto"])){ PrintHtml($_POST["id_tuto"]); } function PrintHtml($id) { switch($id) { case [...]: ...

is there any advantage of webservices over web-pages for providing ajax content?

Should my ajax calls talk to webservices or to simple webpages? It seems to be so much easier to simply Response.Write() the content. Are webservices more reliable or secure? ...

AJAX, Subdomains, and SSL

I have a site, foo.com, that makes ajax requests to bar.foo.com. Will this work. Also, if foo is a secure connection, https, does bar.foo.com need to be https too? Can these two sites use different certificates? ...

How do you Manage Infragistics WebGrid Data from JavaScript/Ajax code?

I am working on a project that I need to use the Infragistics WebGrid control for some lists of data. I am loading the data on the client-side using JavaScript for display on a Map, and then I need to display that same data within multiple WebGrids. All the data available will be displayed in the WebGrids, but only a subset of the data (...

Can I trigger a complete web page reload with content from a javascript string ?

This is one of those ajax "alternate flow" questions. Normally I expect my ajax request to return a part of the page. But sometimes it may return a full page with html, head and body tag. At the time I return from my ajax-request I can detect if this is a full page, but is it possible to trigger a full page reload (with full event cycl...

ColdFusion vs PHP

Can anyone share with me (without fervent evangelism, please) any comparative experiences you might have with regard to ColdFusion and PHP in developing internal enterprise browser-based applications? Specifically (but not limited to): 1: Do the rapid-development characteristics of ColdFusion compensate for any performance issues resu...