We use cookies to give you the best experience on our website. If you continue to browse, then you agree to our privacy policy and cookie policy. Image for the cookie policy date
Unfortunately, activation email could not send to your email. Please try again.
Essential JS2

Syncfusion jQuery based widgets are no longer in active development. Switch to our pure JavaScript based next generation Essential JS 2 library.

Syncfusion Feedback

How to format trackball tooltip text in ejChart?

Platform: jQuery |
Control: ejChart |
Published Date: February 12, 2015 |
Last Revised Date: November 18, 2019

By default, trackball displays the “x” value and “y” value of a point as tooltip text when you move the mouse over the Chart area. The “x” value in trackball tooltip text is formatted based on the labelFormat property of the Horizontal axis used by the series and the “y” value displayed in trackball tooltip text is formatted based on the labelFormat property of the Vertical axis used by the series.


    crosshair: {
        type: 'trackball',
        visible: true
    primaryYAxis: {
        labelFormat: '${value} K'


The following screenshot displays trackball with formatted “y” value.

Format of trackball tooltip text

Figure 1: Trackball with formatted “y” value

JS Playground sample link: Trackball tooltip format

You must log in to leave a comment

Please sign in to access our KB

This page will automatically be redirected to the sign-in page in 10 seconds.

Up arrow icon

Warning Icon You are using an outdated version of Internet Explorer that may not display all features of this and other websites. Upgrade to Internet Explorer 8 or newer for a better experience.Close Icon

Live Chat Icon For mobile