Can I display custom tooltips on a pie chart via a callback?

[Rik]

I have data that is in minutes, but I want to display the tooltip in hours and minutes. For example, if value was 200, the displayed tooltip would be "3 hours 20 minutes". 

I know I can use the templates to display a custom tooltip that is made up of the value and text, but I need to do more manipulation of the value to make it more friendly.

Thanks

Rik

[Iliana Dyankova]

Hi Rik,

To achieve this you could create a function which implement the logic you need and call it in the tooltip. For example: 

$("#chart").kendoChart({
  ...
  tooltip: {
      visible: true,
       template: "#= templateFormat(value) #"
   },
});
...

function templateFormat(value) {
   var hours = Math.floor(value/60);
   var minutes = Math.floor(value%60);
   return hours + " hours " + minutes + " minutes";
}

For convenience, I created a simple project which illustrates such approach in action.

 

Greetings,
Iliana Nikolova
the Telerik team