Native mobile tabstrips each have have their own set of views and history per tab.  So for example if you are doing work on one tab, then click another tab, returning back to the first will show everything as it was before leaving.  


kendo mobile's tabstrip doesn't work that way.  Clicking on another tab destroys the content in the previous tab. It should not do that!  Rather, it should mimic the behavior of a native tabstrip.

When sorting a foreign key column on grid, the sorting is performed using the value/id - which is wrong. The sorting should consider the text displayed to the user.

For a column chart, both the column and its (optional) label can be clicked and wired up with seriesClick. However, the cursor only turns into a pointer (hand) when hovering over the column; it does not do this for the label above, even though it's active. I'd like this to be consistent, and thus have hovering over the label turn the cursor into a pointer as well.

We were recently going to upgrade from Kendo 2012Q2 to 2013Q1. Unfortunately we can't because we require support for IE8+. 

Our issue is the grid's dataItem method. In IE, it's just too slow. In order to use the newer version of Kendo, we have to upgrade to jQuery 1.9.1 (supplied in the Kendo package). In some cases, the selectors you are using are 13x slower than they were in jQuery 1.7.1.

http://jsperf.com/jquery-1-9-performance-issues

In the dataItem method, you're using the ">" selector instead of children. This, coupled with :not causes this method to crawl. 

In the jsperf test I linked above, I profile many different scenarios. You might want to take a look and see if perhaps you can make use of the .children() method and .not() instead of :not in future releases.

Element scrolling on Android 2 devices is jerky. As a workaround it would be good to have ability revert to native page scrolling. 
I've successfully implement this with css, but this only works on non-touch devices. Touch devices "highjack" the touch events of body.

There are a couple of basic controls which I'm missing in Kendo UI WEB for example:
- Rating
- Carousel
- Progress Bar
- Image Cropper
- etc.

Please have a look at this non-commercial framework: http://www.alloyui.com

It would be wonderful to have code highlighting and Intellisense for script blocks using the text/x-kendo-tmpl type in Visual Studio.

Currently you can change the type to text/html to get partial html syntax highlighting, but it does not highlight Kendo specific elements inside #: #. 

Add a way to keep the highlight in list view - useful in split view so that it's clearly visible which item is selected (to be consistent to iOS, e.g. Mail app)

When a dataviz chart is bound to a series that contains null points (for example if no data exists for a particular item on given column in data model), hovering over that series in the legend causes an error in the DataViz pointsBySeriesIndex function.

A workaround is to edit the source JS function, adding a check to see if points[j] is undefined. Is it possible to fix this in future releases?

Add the feature of Thresholds in charts... change color if data is out of range...

I would love to see this happen in the next release! The hacks out there work, but we're still forced to use the Select2 library to do this well. We want to use Kendo for the whole project.

I'm resurrecting this on the suggestion of Todd Anglin.  An earlier request for this feature was declined because modern browsers include spell check.

However, there are many use cases where this is no use.  In my particular case I need:

   - Spell Check to work in IE8
   - Custom (and programmatically accessible) dictionaries
   - The ability to programmatically turn spell check on/off on a field by field basis

add server side wrapper jsp for mobile, support MVC binding, when server side data change, mobile side widget auto change

With TabStrip, it's only possible to programmatically switch to URLs instead of indexes of the tabs.

In some cases you may not have an URL, but a click handler, and therefore it is impossible to switch to the tab it represents.

http://docs.kendoui.com/api/mobile/tabstrip#methods-switchTo

I would like to see the  examples and documentation for the AngularJS integration appearing on the main Kendo UI site. 
Also this implies that AngularJS should be given greater priority and the integration library should be officially supported.

It would be great if Javascript Source Map files (details: http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/) were available for each of the minified Kendo UI files.  These files allow a developer to publish their application using minified files, but have the browser (at least Chrome and Firefox) automatically load and link up with a non-minified version for debugging purposes.  I'm not sure which minifier you use, but Closure supposedly can create them automatically.  Thanks for considering this.

Hi,

I have a ticket on this but wanted to make sure it gets attention as I think it's a critical functionality that a main competitor implements well and Dataviz lacks.

We need to be able to chart date based data with discontinuous data. For example, events data with a start date and end date. Here is a set of features that would make DataViz competitive:

1. Provide the ability to combine various chart types with different datasources...both remote and local. we need to ba able to plot date based data from many sources.
2. Include a simple, easy to use way to sync all included charts to a navigator/selection tool or a set of date pickers. This could be as simple as a property that links charts, similar to the cascading dropdowns.
3. Fix the problem of tool tips not working over the navigator and selection tool charts.While not a huge problem, clients complain that the underlying chart is useless without tool tips to provide the numeric data.

As always thanks for listening and hope this gets some attention.

A very nice feature to have on the Dataviz gauges would be events for when the value changes from one range to another.  For example, if I have a gauge with range thresholds at 10 and 40, it would be nice if an event gets triggered when either one of those thresholds are crossed in either direction.  Let's say 0-9 is green, 10-39 is yellow, and 40+ is red.  If my value goes from 9 to 10 the gauge should raise an event that gives me the current range I'm in so I can act on it.

Please give some good Red color out of the box theme. Currently there is no good theme. All are ble/black/gray.

Right now, the scrollbars of the scrollwrapper widget only show up if the user actually starts scrolling.

However, there are circumstances where the user might not be aware that the content is actually scrollable.

Two examples:

The content of the scrollwrapper contains a lot of whitespace/background such that the user sees whitespace at the end of the scrollwrapper box and is not aware of overflowing content.

The scrollwrapper does not contain continuous text but a list and the visible content ends right after a list item -- the user might not be aware that there are subsequent list items hidden in the overflow.

Thus I suggest to add a configuration option to the scrollwrapper widget which makes both/the horizontal/the vertical scrollbar permanently visible to inform the user about overflowing content.