AJAX :: "client-side Framework Failed To Load", But Only Occurs Some Mornings?
Jan 24, 2011
I originally wrote an ASP .NET 3.5 intranet website on a .NET 4.0 machine running IIS 5. To alleviate the problem, I figured I'd rewrite the website in VS using 4.0. This seemed to fix the issue, but then it starting reoccuring again. I currently have 8 users for my website, which utilizes the AJAX dropdownextender. Ajax 4.0 is installed on the machine and all the users (including me) can access the website via the intranet and rarely have problems. The only issues arise in the morning when the users 1st access the site. It will occassionally give errors stating"ASP.NET Ajax client-side framework failed to load","'Sys.Extended.UI' is null or not an object", or"'Sys.WebForms.PageRequestManager' is null or not an object". All these errors arise from the framework incorrectly loading. It is typically cleared up right away with a page refresh. Unfortunately, most of the users aren't the most computer literate, so are unaware of issues that arise. I just want to know if there is a way to fix this issue. I've been researching this issue alot, but never got a straight answer. If any other information is necessary, please let me know.
I wanted to make extensive changes to a project, so I created a copy of the project folder. In the new version, I renamed all of my namespaces and a few classes. Everything compiles and runs, however, I am getting this javascript error. 'ASP.NET Ajax client-side framework failed to load' and my 'Auto complete' text box no longer works. This error does not occur in the original project.
The HTML source between the original and the new project are identical, save for the few lines of code that throw this error. The web.config files are identical.
i am facing a serious problem with ajax that ASP.NET Ajax client-side framework failed to load and also sys is undefined.i have asp.net 3.5 service pack 1 installed on server.also using toolkitscriptmanager on pages have checked iis for .axd extension.It is there.system date is okk.have latest version of ajaz control toolkit.on localhost it is working fine.but giving error on live server.
I have seen all the previous posts but did not got any solution. I am using URL routing and the website runs fine untill i change the global.asax file. Till then all the configurations runs properly. The web.config is also correct and ihave added the modules required for URL routing. Now when i change the global.asax file, i get the following error on my masterpage:
//<![CDATA[ if (typeof(Sys) === 'undefined') throw new Error('ASP.NET Ajax client-side framework failed to load.'); //]]> [code]...
what needs to be done since I'm trying to interpert other people's code. Anyway, here is my dilimma. I am running Windows 7 Professional x64 with IIS 7 and coding in VS 2010 using .NET 4 for the ASP.NET site. I installed the AjaxControlToolkit.NET4 in VS 2010 with no issues. I even used the Calendar Extender with a text box and image with no problems, at least when debugging. When I go to publish it out on my test IIS7 site
I have uploaded my application made in vs 2010 and asp.net 3.5 framework on windows Server 2003 R2. As i run my app i get an error1.ASP.NET Ajax client-side framework failed to load.2. sys is undefined.I already have 3.5 framework installed on my server and th latest version of ajax tootlkit dll added to my app.
I had a working .net website in a working VS2008 environment on a WinXP machine.Moved to Win7 machine, and now this maddening error comes up. I have no clue!Since the site and the development environment were working before, I can only assume it is an environmental problem. But what?
I have developed an ERP module wihch runs on intranet. with ASP.NET /AJAX. It runs perfectly in my localhost. IIS. But when I try to run it on my development, It gives some errors of AJAX. undefined string literals. Microft ajax client-sisde framework failed to load. sys is undefined.. I've check my web.config file. But I cant find any problems into it.
I am using VS2010, .Net 4. I am trying to add a ScriptManager to my page, so I can reference an AJAX Enabled WCF Service. When I add the ScriptManager control to my page and view it - I get the error shown below. I have no clue how to resolve it. I get the error by simply putting the control on my page (not reference the WCF Service).
(script type="text/javascript") //(![CDATA[ if (typeof(Sys) === 'undefined') throw new Error('ASP.NET Ajax client-side framework failed to load.'); //]]) (/script)
Actually, my problem is that I am not able to access the service. I am referencing it inside the ScriptManager and have the javascript code in place, but Firefox is reporting that it cannot find it. Says it is not defined. I do not know how to test this or determine where it is failing.
I have tried every single method in almost every post available on both Bing and Google. And I still get this error.I thought it was something in my website or web.config, so I opened up VS2008, selected to create a new ASP.NET Website and let it go..Here is the default.aspx page and web.config created by VS2008. Without modifying anything other than chaning the website properties to .NET 3.5 instead of .Net 2.0, I still get the error on this website when I hit F5. I have other websites with the ajax update panel and script manager on this server that work fine and have tried the web.config from them on a new project. But any new projects still do not work.I have verified that the settings for the working project as well as this new project in IIS are the same. Can anyone tell me why I am getting this error and theSys Undefined error?
When I open my webpage locally on my computer, the webpage does not through any error but from the server, I get those: Message: ASP.NET Ajax client-side framework failed to load.
Message: 'Sys' is undefined Line: 678 Message: 'Sys' is undefined Line: 2542
In the web.config file I changed: <compilation debug="true"> to <compilation debug="false"> wich solved the first error(ASP.NET Ajax client-side framework failed to load.)
1. I wonder if that is okay to solve that error like that? 2. Then I wonder for the 'Sys' is undefined, what is causing that error. I googled and could solve the first error but this Sys error it seems to have countless of solutions that have not worked for me, so I might wonder what can cause this
So, I am having this weird problem. When I access my web site while I am connected through company network (either directly or vpn), I am not this error and able to use all AJAX functionalities.
Now, my problem occurs when I am not inside of company network (from home) and trying to access the web site, I am getting error and all the AJAX functionalities are disabled.
I go through Microsoft ISA server to logon to network when I try to access the site externally.
I got gzip working, but there are issues with IE. (works fine with FF and Chrome) Message: ASP.NET Ajax client-side framework failed to load. (and many other js related errors)
How can I prevent gzip compression on ie browsers ?? Other people who had similar issues enabled compression in IIS and that seems to solve the issue, but I can't do this on my discount machine...
I'm trying to prevent a "flicker" effect that is occurring on my ASP.NET page which occurs when a user navigates to the page via the browser back button after having navigated away from it. The reason for the flicker is that I'm using an Update Panel which has some content in there on the initial page-load. As a result, when the page is loaded via a back button that initial content is shown very briefly before it is updated with the correct History-aware data.
In order to overcome this I am intending on having the updatepanel hidden (display: none) on inital page load and then show it as long as we don't have any history to deal with. The problem is that I can't find out what to check to determine if there's any history. I can see that the Sys.Application has a _history member but when I'm checking it on page init it is null each time.Does anyone know what I should be checking to determine if there's history to deal with for a page load client-side? And at what point to do it?
I have a async file upload control and I am doing client side validation for Image."OnClientuploadstarted" I am doing the client side validation.My validation is working fine but my problem is that the file upload control text box goes green (i.e file is loaded on the server) even if the validation fails which is I dont want.What I want is when the client side validation fails the file does not gets loaded on the server and the Async file upload textbox does not goes green.I have goggled but have not found a suitable solution.
I know that setting runat="server" and specifying an id for an iframe control, makes it accessible on the server side but what I need is that the iframe source contents get loaded at server side not client side.Is it possible?Why do I need it this way?
Currently my iframe source site is configured for ntlm authentication and sso which means it would read my windows credentials whereas I'd need it reads the credentials provided by the site which hosts that iframe.
Anyone have any suggestions for 3rd party controls that work entirely client side?By this I mean the following using the example of an invoice:An invoice is a master, with children.I have to be able to select properties on the invoice and add lines to the invoice via a grid to obviously have the customer like my invoice editing window because they don't want to have to enter the basics and then save and then add the line items.In a classic asp.net/mvc.net model the server does the processing. This requires that you either store your data objects in the view state (in this case EF) or you store it in the session.Neither scales worth crap.What I'm looking to do is be able to create an entire form that interacts in javascript using jquery and never posts back to the server to be persistant. It may pull data from the server to update lists and do lookups etc. but it will never have to have the server hold information to be persistant while it's being built (and thus only when the user clicks save will it actually post the data back.In a perfect world what would happen is that the EF object would be converted to javascript and then used and bound, and updated. Once I'm done I'd post back the javascript object and it would be automatically converted to the EF equivalent class which I could then attach and save to the database.By doing this I can eliminate all persistant memory usage and indeed essentially ALL use of the Session or viewstate which would be super powerful.
I know that I can receive an javascript object from the server via ASP.NET AJAX using Json. But I am not sure how can I send an javascript object from my client-side javascript to my server-side code. And if I can, how can I extract this object in my server-side code and access its members?
I reordered some items in a listbox using Javascript. When I read the items in a postback in the code behind (ASP.NET), the order is in the original order. How do I get the same order as shown in the screen after Javascript manipulation?
I m using site login Control in my login.ascx file and disaplaying login control in Div so if there is login link in page and i click on that then Login Div will popup which is site login.May i know how can handle error like username or password is incorrect on client side instead server side?
