There is significant latency when a user has many images in a list or dropdown list, particularly those with sub-choices that also have images.  Because of this, we tried implementing design-time templates to allow lazy loading of images for ListBox and ComboBox.  While implementing a solution is possible, it was much more complicated than expected.

One specific problem we encountered was that when using a template, the ListBox wraps its internal label in a span (which the ComboBox doesn't do).  This results in problems with data-binding (requiring an item-by-item solution) and requires specialized css to handle.  Even after the basic solution was working, sub-choices still had a problem accessing text and image data.  This could be solved with a custom frontend runtime template, but it was not an elegant solution.

Our feature request is for lazy loading to be an option for images for the ListBox and ComboBox.  This would significantly improve the user experience with long lists and drop-downs. 

Right now the end user can resize the table cells only through the provided interface in the Table Wizard and Properties inspector module. It will be useful this to be enabled as resize handlers directly in the table as it is implemented in the Kendo Editor - https://demos.telerik.com/kendo-ui/editor/index.

I am currently using the Radeditor "Insert Table" function. I would like this to allow user to auto adjust columns and rows live just like the following demo. https://demos.telerik.com/aspnet-mvc/editor.  I have disable the table wizard and table properties, so user will not be able to mess with this extra stuff. In the Capture.PNG is what I currently have. I would like to have the Want.PNG picture. 

is it possible for the radnumerictextbox control to pop up with numeric keyboards on mobile devices yet?  I see old KB articles that said no, but they were pretty old.

When inserting video in Telerik Editor, radEditor by default inserts it using <embed>.
This element is not supported by Edge. Many modern browsers now support/recommend to use of the <video> tag.
So, that it will render video in most of Chromium browsers out there.

 

 

Please update the RadODataSource to support the newest version of OData. The syntax for filtering (among other things) has changed, so I am unable to implement this control with my chosen technology stack until it is updated. Thanks!

Discovered that the screen reader is not announcing the select list options. The previous ticket made these keyboard accessible and selectable.  Right now, the use of a screen reader only announces: 

With JAWS
Paragraph Style button menu
Font Name button menu
Real Font button menu
Zoom button menu

With NVDA
Paragraph Style sub menu
Font Name sub menu
Real Font sub menu
Zoom sub menu

 

Using Alt+down arrow to expand the select option menu, using the arrow keys to navigate down the menu nothing is announced although you can visually see the focus highlight in the menu.

This is the same for the two screen readers JAWS and NVDA. Same result when testing on Edge and Chrome browsers.

Other menu options or expandable sections are having a similar issue for:

Paste Options
Foreground Color
Background Color
Paint Stripper
Insert Symbol
Insert Table
Module Manager this one is empty when it expands

Thank you.

Hello Telerik Team,

I'm implementing HeaderContext filtering with checkbox lists on a RadGrid in a legacy ASP.NET WebForms application. 

Current Setup:
- FilterType="HeaderContext"
- FilterCheckListEnableLoadOnDemand="true"
- OnFilterCheckListItemsRequested event populates checkboxes from session data

Issue:
Users experience 500-2000ms delay when opening filter menus (AJAX callback to server). 
In our production environment with slow network and high concurrent users, this creates 
poor user experience.

Questions:
1. Is there a way to pre-populate checkbox lists during grid initialization 
   (avoiding AJAX callback)?
2. Can we use OnItemCreated to populate checkbox lists with 
   FilterCheckListEnableLoadOnDemand="false"? If so, what's the correct approach?
3. Is there a client-side caching mechanism for checkbox list items?
4. What's the recommended pattern for large datasets (1000+ rows) with multiple 
   filterable columns?

Environment:
- Telerik.Web.UI version: v4.0.30319
- .NET Framework: 4.8
- Browser: Chrome, IE11
- Grid has ~10 columns with 5 using checkbox filters

Any guidance on performance optimization would be greatly appreciated!

Thank you,
Anurag pandey

Please implement WAI-ARIA support in RadSearchBox with and without a Search Context.

It needs the same type of logic added as the AutoComplete and ComboBox control so that JAWS can speak and navigate the list items properly.
It looks like there was a little started because it renders an ARIA live region for status, but never writes to it from what I can tell.

I know this document lists the current controls that support ARIA - http://docs.telerik.com/devtools/aspnet-ajax/controls/wai-aria-support-and-screen-readers

Thanks,
Mike

For security reasons SRI is getting more important over time. For compliance reasons I am forced to secure external applications for my clients.

In my AJAX web applications I am using RadScriptManager. However, it seems that the "integrity" directive is not supported by RadScriptReference.

E.g.:

I would like to know if Telerik ASPNET Ajax  control supports securing CSP by adding nonce- or sha256- as mentioned in https://www.sitepoint.com/improving-web-security-with-the-content-security-policy (Refer section - Protecting Inline Styles and Scripts Using a Nonce).

Hi
Please add rtl support to RadDropDownTree.

Thanks

Requesting Keyboard navigation be implemented for the Org Chart control to support 508 Accessibility.

Add an option to support the automatic repetition of the video.

The control should provide support for the JAWS screen readers, which will enable it for use by visually impaired users.

More details are available in the following forum thread - https://www.telerik.com/forums/how-is-listbox-usable-for-screen-readers

There are some areas within the RADEditor that do not support localization:

1. Alerts for Accept All and Reject All track changes.
2. The Comments user interface.
3. Certain strings in the Undo menu.

See attached.

Provide keyboard support for the MediaPlayer.

Some of the occurring problems are:

• It is not clear how to get focus on the control, we assigned an accesskey="T" but  alt-t doesn't give focus (we have  a radmenu on the same page with an accesskey="M" which works fine)
• The tab key sometimes does not work.

Keyboard navigation is required for 508 accessibility support. Generally the space bar is used to start/stop video and tabs are used to access the playbar features like expand, vol and CC

Hi, 

We need to add an aria-label attribute to the RadEditor toolbar link buttons to match the title attribute text. I have been successful using JQuery on other controls to improve accessibility, but this one is not working. It appears because the link button is not rendered since is a pseudo element using the ::before. I have been unable to inject the attribute on page load. 

The issue is for screen readers the editor buttons are not announced when using the arrow key navigation which is called virtual mode. The buttons do announce when using the tab key which is called forms mode.

If this can be a bug fix it would benefit everyone, otherwise, if you have a code suggestions that is helpful. Image attached. 

Thank you.

The newly introduced StripJavaScriptUris security filter is incorrectly identifying and removing legitimate base64-encoded image data URIs (e.g., data:image/png;base64,...) from RadEditor content. The filter treats these safe image URIs as potential XSS threats and strips them along with dangerous JavaScript URIs.

Hello,

We see the integration of AI through the AI​​Prompt component within the ASP.Net Core Editor, which enables a smarter and more efficient content creation experience, and we love it. We would be very happy if we could have the same integration for the Ajax Editor as well.

Thanks in advance
Yossi