Bug report

When a custom class attribute is set via the columns.attributes option, the TreeList renders an additional class that is undefined.

Reproduction of the problem

1. Initialize a TreeList.

2. Set a custom class via the attributes option:

3. Inspect the relevant "td" element

Dojo sample for reproduction:

https://dojo.telerik.com/IqApoGOz

Expected/desired behavior

The TreeList should render only the specified classes.

Environment

* **Kendo UI version:** 2019.3.1023
* **jQuery version:** 1.12.4
* **Browser:** [all] 

I'm building an app that is using DataViz for charting but there are scenarios where it's possible to *not* have any data returned to map out in the chart.

I'd like to be able to:
- Set an X and Y axis value so the plot area is displayed
- Provide either a message, a function or a DOM element which will be displayed over the chart

Here's a snippet of how I think the API could expose it:

$('#chart').kendoChart({ 
    noData: {
      seriesMax: 100,
      category: 'Some category',
      message: 'No data!' || function () { return 'No Data!' } || $('.no-data-message')
    }
}

powerful visual app builder Like Sencha Architect for Ext JS

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)

Extend "filterable" to match the datasource's "filter" (singular, not "filters") configuration option.

The current set of Kendo DataViz components are pretty nice but it'd be great to have more control over the colors/shading of chart items. This is more important for interactive charts where a user might click on an item, and then a small snippet of code would re-fresh a sibling chart to show more detailed data, etc. Visually you'd want to highlight the currently selected item (similar to the piechart Explode option) with a different color/shade.

It would be great if we could easily build a coverflow experience that matches what you have in your siliverlight components or what Apple does with iTunes

It would be nice to be able to have log scales on gauges.

It would be really nice to have slide out panels or drawers (not the same as the existing mobile drawer, but similar).

The demo below shows a good example (left, right and top).

http://responsivewebinc.com/premium/sheldon/sheldonadmin/index.html

Allow creation of custom labels that can be placed any where on the chart surface using x, y coordinates.

Similar to the PDF Viewer, please could you make a Word Document Viewer?

Thank you!

Please see 'Subject' line the <div> resizing didn't work as advertised and the splitter itself resizes to '0px'

kendo.mobile.ui.Loader: It would be helpful to get a configuration option to define an own loader or to provide a set of different loaders (including the well known simple "turning wheel").

Hi Team,

I would like to request that in the @progress/kendo-ui npm package to be modified so that the dependencies for jQuery will include <=3.5.1 instead of 3.5.1.  I believe that the package.json should be fixed on NPM or this will cause issues for a lot of people that use jQuery with more than just kendo.

Thank you! 

It would be nice to add the telerik controls for flutter.

We would like an event that we can listen to for when the drawer has completely finished opening.

provide option to make search input in listview fixed on top while user is scrolling.

When exporting data to an Excel spreadsheet, unsanitized data can be used to trigger a formula-injection attack. For example, a malicious user could embed a formula in a normal business object field (eg. description of a movie), then wait for a unsuspecting user to export the data to Excel. When the file is open in Excel and the cell is clicked, the formula is executed on the user machine, which can be used to do bad stuff (execute commands, exfiltrate data...). While latest versions of Excel has added a lot of warning when you open spreadsheet, it often recommend to open the file only if the user trusts the originating web site, which is normally the case.

One way to mitigate the issue is to prepend a single-quote to a value in Excel, which neutralize the formula and force the value to be interpreted as a string. The single quote is not shown in the Excel grid, but is visible in the formula bar. 

With Kendo UI for jQuery, we can modify the data on the fly to prepend a single-quote, which does neutralize formula, but the single quote is shown in the Excel grid. 

To obtain the same behavior as Excel, we need to use the quotePrefix cell format in Office Open Xml (see quotePrefix in this link).

Hence, I would like to have something similar to the following feature in Kendo UI ooxml module:

• Add a property to cells (https://docs.telerik.com/kendo-ui/api/javascript/ooxml/workbook/configuration/sheets.rows.cells), similar to other styles (italic, wrap...), called quotePrefix, that takes a boolean value (default=false)
• When that property is 'true', add 'quotePrefix="1"' to the cell style in the generated OpenXML spreadsheet (inside "cellXfs / xf" elements)

I think the effort would be minimal, and it will yield far better experience for users when server tries to overcome the fomula-injection problem.

Thanks,

Jonathan Fortier

https://github.com/kurkle/chartjs-chart-matrix

I am looking for the kendoui heatmap chart as found on GitHub or at the URL above.
I could just copy what they use on github, but I would prefer to get the kendo CDN all from one place.

Initial usage is just to render activity throughout the day as in github, extra is to track the onClick events as you usually want to trigger a re-query on what happened in that period of the day on that date, driving a details view elsewhere.
Al worse you could have dojo demo of how you would wire up chartjs-chart-matrix to a the Datasource(eg like https://demos.telerik.com/kendo-ui/map/geojson), with a view of how you would have created such a chart that would be good on a PWA app.
Thanks
Doug

Bug report

When the content that is being exported to PDF contains Material Design Icon the exported PDF is not valid.

Reproduction of the problem

1. Open the Dojo
2. Export the file
3. Try to open it with Adobe Reader

Current behavior

Currently, when the file is about to be opened with Adobe Reader the following error appears - 'An error exists on the page. Acrobat may not display the page correctly. Please contact the person who created the PDF document to correct the problem.'.
Also if the file is tested in an online pdf validator it is not considered valid.

Expected/desired behavior

The exported file should be opened in Adobe Reader without any issues.

Environment

• Kendo UI version: 2021.1.330
• Browser: [all ]