I have an ExtJS grid on a web page and I'd like to save some of its state information back to the server when the users leaves the page. Can I do this with an Ajax request onUnload? If not, what's a better solution? ...
There are zillions of Java web application frameworks. 95% were designed before the modern era of AJAX/DHTML-based development, and that means these new methods are grafted on rather than designed in. Has any framework been built from the ground up with e.g. GWT + Extjs in mind? If not, which framework has adapted best to the world of...
How can I construct my ajaxSend call, this seems like the place to put it, to preview what is being passed back to the broker? also, can I stop the ajax call in ajaxSend?..so I can perfect my url string before dealing with errors from the broker? This is the complete URL that, when passed to the broker, will return the JSON code I need:...
Google created protocol buffers as a replacement for the bulky XML method of data transition. Faster XML processing was just not good enough. Most of the web has grown up as a hodge podge of different technologies that have been integrated to work within the browser or to generate html. JavaScript is separate from HTML. Flash and Sil...
I'm working on a web page where I'm making an AJAX call that returns a chunk of HTML like: <div> <!-- some html --> <script type="text/javascript"> /** some javascript */ </script> </div> I'm inserting the whole thing into the DOM, but the JavaScript isn't being run. Is there a way to run it? Some details: I can't contr...
Is it possible to get the progress of an XMLHttpRequest (bytes uploaded, bytes downloaded)? This would be useful to show a progress bar when the user is uploading a large file. The standard API doesn't seem to support it, but maybe there's some non-standard extension in any of the browsers out there? It seems like a pretty obvious feat...
The two connection limit can be particularly troublesome when you have multiple tabs open simultaneously. Besides "ignore the problem," what coping mechanisms have you seen used to get multiple tabs both doing heavily interactive Ajax despite the two connection limit? ...
I have determined that my JSON, coming from the server, is valid (making the ajax call manually), but I would really like to use JQuery. I have also determined that the "post" url, being sent to the server, is correct, using firebug. However, the error callback is still being triggered (parsererror). I also tried datatype: text. Are the...
Does anyone know much about the Asp.Net webconfig element ? I'm looking at it because I'm implementing an MS Ajax updatepanel in an existing site, and after doing some looking around, on the web I'm not finding a lot of info about it. And to avoid the flood of replies telling me how inefficient the update panel is, and that it's not a...
How do I preview a url using ajax? I have seen this done with search engine plug ins and would like to learn how to do this. Specifically, I would like to be able to mouse over a link and see the preview of the webpage using ajax. ...
Given the following JSON Date representation: "\/Date(1221644506800-0700)\/" How do you deserialize this into it's JavaScript Date-type form? I've tried using MS AJAX JavaScrioptSerializer as shown below: Sys.Serialization.JavaScriptSerializer.deserialize("\/Date(1221644506800-0700)\/") However, all I get back is the literal strin...
My web application has a login page that submits authentication credentials via an AJAX call. If the user enters the correct username and password, everything is fine, but if not, the following happens: The web server determines that although the request included a well-formed Authorization header, the credentials in the header do not ...
How do you implement autocomplete on ASP.Net Gridview? Can anyone point me where to go to achieve this? I'm willing to use non-.Net ajax controls if that what it takes. ...
I have done a bit of testing on this myself (During the server side processing of a DWR Framework Ajax request handler to be exact) and it seems you CAN successfully manipulate cookies, but this goes against much that I have read on Ajax best practices and how browsers interpret the response from an XmlHttpRequest. Note I have tested on...
On my current project, we've been using Struts 1 for the last few years, and ... ahem ... Struts is showing its age. We're slowly migrating our front-end code to an Ajax client that consumes XML from the servers. I'm wondering if any of you have migrated a legacy Struts application to a different framework, and what challenges you faced ...
How to implement a web page that scales when the browser window is resized? I can lay out the elements of the page using either a table or CSS float sections, but i want the display to rescale when the browser window is resized i have a working solution using AJAX PRO and DIVs with overflow:auto and an onwindowresize hook, but it is cu...
I have an existing JSF application (Tomcat 6, MyFaces, JSF 1.2, Tomahawk, JSP) and we are looking at adding AJAX to existing pages. 1 What is the best framework you have used. 2 What issues have you had. I have stated looking at Richfaces, and just started looking at Icefaces Thanks. ...
My Web Application is split up in a WebGui and an WebService. The WebService is responsible for Business Logic and Database handling. From Javascript in the Browser I request data depending on a date and time that is an input from the Browser. This request gous to an .asmx Url in the WebGui and inside this function the webservice is call...
I am currently developing a website using basic cgi to turn out pages. I would like the website to be changed to have a better (read dynamic) interface. What techniques (if not AJAX) and/or tutorials would you recommend to get me started? ...
Here is my current question: I'm guessing that my problem (described below) is being caused by ASP.NET worker processes being recycled, per the answers below—I'm using InProc sessions storage and don't see much chance of moving away, due to the restriction for other types of storage that all session objects be serializable. However, I c...