How do I do a multi line chart tooltip (MVVM, if that matters)?

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Charts ToolTip
Jay
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Jay asked on 16 May 2023, 03:30 PM | edited on 16 May 2023, 06:19 PM

I'm trying to get a chart to display a multi line tooltip. I've seen elsewhere that I'm supposed to put a <br/> in it for new lines, but that doesn't seem to be working. The text from the tooltip template is being run through kendo.htmlEncode, which translates the <br/> into &lt;br&gt;. which of course doesn't provide the wanted line break.

Here is a dojo.

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Nikolay
Telerik team
answered on 19 May 2023, 11:41 AM

Hi Jay,

I recommend directly using a Kendo template and building the tooltip markup as desired. For example:

data-series-defaults="{ type: 'column', tooltip: { visible: true, template: $('#tmp').html() } }"
...
<script type="x-kendo/tmp" id="tmp">
    Value
    <br>
  	#= kendo.format("{0:c0}", value) #
  </script>

Dojo demo: https://dojo.telerik.com/uTolANAD

Regards,
Nikolay
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Stay tuned by visiting our public roadmap and feedback portal pages! Or perhaps, if you are new to our Kendo family, check out our getting started resources
Jay
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commented on 23 May 2023, 03:28 PM

Thanks, Nikolay, that got me pointed in the right direction. Turns out I just had to change my tooltip template definition slightly from 
template: '#: tooltipText(value) #'
to
template: '#= tooltipText(value) #'
I noticed your example used the #= syntax, and the template link you provided explained that the #= renders as HTML while the #: renders using encoding.
Nikolay
Telerik team
commented on 26 May 2023, 08:34 AM

Hi Jay,

Thank you for the update.

Indeed, the different syntax changes the rendering:

 - (#= #) - Render values as HTML.
 - (#: #) - Use HTML encoding to display values.

The article: https://docs.telerik.com/kendo-ui/framework/templates/essentials#template-syntax

Regards,

Nikolay

 

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