IE 11 doesn't render listbox features with Q3 '13 release

[Mike]

Hello,

I'm using Windows 8.1/IE 11 and the latest Telerik release, Q3 '13, dated 10/14/13 and am seeing a variety of rendering issues w/ the RadListbox control. For example, take a look at the demo page using IE 11:

http://demos.telerik.com/aspnet-ajax/listbox/examples/overview/defaultcs.aspx

Note that the transfer buttons do not render (although the underlying HTML does exist). 

I found this out during development and went back to the demo site to see if I could reproduce, and since I can, figured I'd write it up here. Telerik support - do you see this issue as well? Any updates planned for full IE 11 support?

Thanks,

- Mike

[Aneliya Petkova]

Hi Mike,

Thank you for the report.

Please find the attached screenshot. Is this the exact issue you have experienced? If yes, we are aware of this problem and it will be fixed for the upcoming Q3 SP1(in mid-November).
If not - could you please send me a screenshot of the problem at your side to examine it locally?

Regards,
Aneliya Petkova
Telerik

[Mike]

Hi,

I see something like your attached screenshot while running IE 11 compat mode, but when running IE 11 directly, what I see is slightly different. See atttached screen shot. I am using the released version of 8.1/IE 11 installed this weekend. Note that the "Configuration" area of the demo is messed up too...

My guess is that this is the same underlying issue, though.

Thanks!

- Mike

[Aneliya Petkova]

Hi Mike

Thank you for getting back to us.

The web page renders the content incorrectly when you are not in compatibility mode because Internet Explorer 11 is not recognized as an Internet Explorer browser by ASP.NET. If you are working under .NET 4, a patch that Microsoft released recently should fix the IE11 browser detection problem in ASP.NET: http://support.microsoft.com/kb/2836939/en-us and we recommend installing it.

If the issue still persists after installing the patch, don’t hesitate to contact us again so that we could further research and do our best to fix it.

p.s: The patch is not installed at our online demos. So if you inspect the url below(without IE Compatibility Mode), you will still experience the issue:
http://demos.telerik.com/aspnet-ajax/listbox/examples/overview/defaultcs.aspx

Regards,

Aneliya Petkova
Telerik

[Mike]

Okay. I guess this explains the issue with the Telerik demo site. In my environment, however, I tried to install the Microsoft patch, but it failed/not required because I already have the latest update to ASP.NET 4, as it was installed as part of the Windows 8.1 upgrade (note that in the list of applicable operating systems for the Microsoft patch, Windows 8 is not listed). My development environment is Windows 8.1.

So, I'm thinking that I should just wait until the Q3 '13 SP1 release mid November to see if this addresses my listbox rendering issues with IE 11?

Thanks,

- Mike

[Aneliya Petkova]

Hi Mike,

I see the problem you have reported only at our demos. I have tested RadListBox control with a sample page in Windows 8.1 and IE11 environment(without Comaptibility mode), but the issue didn't appear there.

You can research for other ways to fix the problem you are facing. For example, I find a sаmple solution in this forum(the last comment): http://stackoverflow.com/questions/18485339/dopostback-failing-in-ie-11-windows-8-1 .
Regarding the other bug with the buttons in some skins in IE11 – it is already fixed and will be available in the Q3 SP1.

I hope this would be helpful.

Regards,

Aneliya Petkova
Telerik

[Matthew Botting]

Hi Aneliya,

Has Q3 SP1 shipped, that would be the 2013.3 1114 (Nov 14, 2013) one wouldn't it?

I ask as I am encountering a very similar but different issue with IE11 and the listbox.

The issue is occurring in my application but rather than providing source code I have been able to replicate on your demo site.

The previously mentioned overview page works faultlessly but I am having an issue with the Drag & Drop demo



http://demos.telerik.com/aspnet-ajax/listbox/examples/functionality/draganddrop/defaultcs.aspx



In this demo the backgrounds are rendering incorrectly which isn't affecting my app, however the buttons appear pixelated as per the attached screenshot.



Strangely enough in taking the screenshot I determined that on your demo site it is rendering correctly IF I shrink the window from maximised.



Regards,

Matt 

[Aneliya Petkova]

Hello Matthew,

The issue that you get is indeed very strange one.

We have tested  http://demos.telerik.com/aspnet-ajax/listbox/examples/functionality/draganddrop/defaultcs.aspx in IE 11.0.9600.16476, but we were not able to reproduce the issue. Please find attached a screenshot that shows how the demo page is displayed at our side. 
Do you use firewall? We think that your machine may have restrictions to load all scripts/styles. Can you please explain in more details your exact configuration? Could you observe the same behavior in any of the others RadListBox demos or just in this one? Could you please record a short video with how you open the page and shrink the IE window?

Can you please, check the version of the Telerik.Web.UI and all of the assembly files in the bin folder of your project as well – are you sure it is 2013.3 1114? Also, what is the exact version of IE11 you are using? Is the issue reproducible only in IE11? (What about the other browsers?)

Please go to http://fiddler2.com/fiddlercap, install FiddlerCap, capture Web Traffic log and send it to us for further examination.

Regards,
Aneliya Petkova
Telerik

[Matthew Botting]

Thanks for the prompt reply Aneliya,

Firstly you are indeed correct regarding the issue I am experiencing in my web application. We have a release branch and 3 development ones. The issue was occurring in a branch that did not yet have 2013.3 1114 applied. Applying the update resolved it.



My process for solving these kind of issues usually involves looking at your demo site for similar scenarios which is when I came across this other strange issue. As it is not affecting me, it is not a priority from my point of view. However I am now intrigued and will try to provide as much additional information as possible.



Please find attached both a video of the issue and an archived Fiddler session.



Note I could not upload wmv and saz files here so I added a jpg suffix, please remove it when saving





From the video you will see I am using the same version of IE as you.



Also from the Fiddler session you will see that I have cleared my cache and no HTTP requests appear to have failed at all.



Also if I shrink my window from the maximised state it comes good.



As it may be related I am running a resolution of 1920x1200.







I hope this helps.



Regards,



Matt

PS Your forum system still will not accept my renamed files. I will lodge a separate support ticket with these files and provide a link back to this forum.

[Aneliya Petkova]

Hello Matthew,

I checked the support ticket that you send us and will also paste the answer here in case anyone else is interested in it:

...Regarding the problem with our demo site, we are not sure what may be the cause. Obviously all of the scripts/styles are loaded correctly. We are also using the same resolution (1920x1200).  
We have tested this page on different machines with IE11 and have tried with choosing different modes of the browser, but we are not able to reproduce it. Could you please check if you observe the same issue on other machines with IE11. If the problem persist, could you please try with restoring the advanced settings of IE from Internet Options -> Advanced.
We will be waiting for your reply...

Regards,
Aneliya Petkova
Telerik