The current drop-down list works great.  However, in situations where the options are hierarchical there are (at least) two obvious solutions.

1) Have two drop-down lists (perhaps with some js altering options based on selections).

2) Display a tree of options from the drop-down. (much like a menu)

Here is an example of #1
http://www.jgeppert.com/jquery-doubleselect/


Here is a very good example of option #2
http://www.givainc.com/labs/mcdropdown_jquery_plugin.htm

The advantage to #1 is that you can easily fire off js after selected options. 

The advantage to #2 is that you can determine all available options on the server and return a structure for rendering.  Also, #2 does not take up more screen real estate. 

I think addressing these interface scenarios would help Kendo become even more usable than it already is.  

Thank you.

When you want to add a new item to TreeView you can only set the Text of that item.

Maybe it would be nice to store more data like the id of the new <li> element

If I take the splitter basic usage example and put the menu basic usage example inside the toparea of the splitter - the dropdowns of the menu comes behind the next area of the splitter and is not visible.

I've tried to adjust z-index etc on the menu to get the dropdowns over the splitterareas, but I can not get it to expand over the other splitter areas.

I can send you screenshots/code etc if you need it..
Tested with IE9 (9.0.8112.16421) and Chrome 14.0.835.202 and Opera 11.51

Please think the Kendo UI validation farmework not only in terms of client-side validation but also in terms of reporting server-side errors.

A framework that would only provide a way to display a validation error message based on a client-side rule after each related input field would not be very helpful in my opinion.

All errors need to be reported in a consistent way. My preferred option is:
- a message box at the top of a form to display all messages including OK messages and error messages (client-side and server-side).
- higlighted fields with tooltips (not to clutter the form layout) to repeat error messages in context when applicable.

Although the framework built into Kendo UI might only provide client-side validation, please make sure to provide entry points into the UI used to report errors. Alternatively, leave the UI to the developer and provide a simple way to collect all validation error messages on a form.

Multifile uploader with drag-drop feature (similar to http://aquantum-demo.appspot.com/file-upload) with fail-back option for IE browsers (flash)

The Book control is great in Silverlight. It may be possible to create a similar control in Kendo

The demo doesn't load any content into the Window UI Widget when viewed in Opera:
http://demos.kendoui.com/window/ajax.html

It works fine in FF.

Would be nice to have helper/wrappers for KendoUI for ASP.NET MVC 3

Hi,

The combobox and autocomplete are ok - but I think the usability and functionality could be dramatically be improved with better filtering, support for option groups and support for multi-select.

Can you please enhance the these controls to behave more like the Chosen dropdown control?

http://harvesthq.github.com/chosen/


Thanks,
Glenn

The lack of a horizontal scrollbar is noticeable :))

I am coming over as a Telerik Ajax developer. I am developing a pure html app against Amazon's S3 service and unfortuately the native sorting you provide is case sensitive. 

My sort ascending appears as

AAA
BBB
aaa
bbb

not very intuitive for end users...

handle RTL support in this awesome package. We really need such feature for using this library in our RTL-Language-Based Clients' projects.

http://www.requirejs.org/ might be a good fit.

Really important to have support for ARIA roles on these types of widgets. That's what they were made for, and jQueryUI does a pretty good job at this.

Accessibility is important.

It would be awesome if Kendo could be powered by Zepto instead of jQuery (optional of course) for mobile environments where we might not want to load all of jQuery.

Kendo + Zepto
It would be awesome if Kendo could be powered by Zepto instead of jQuery (optional of course) for mobile environments where we might not want to load all of jQuery.

For example, an anchor tag placed in a grid table cell is not currently rendered as HTML - instead it is displayed as text.

Good point - this will be discussed for the Kendo UI versions that are to come.

Menu widget has disabled items but lacks icons, separators and checked items