DDDharanidharan Dharmasivam Syncfusion Team May 1, 2017 06:31 AM UTC
Thanks for contacting Syncfusion support.
We have analyzed your query with the provided code snippet and screenshot. We have prepared a sample and ensured with typescript version which you have mentioned. But unfortunately, we were not able to replicate your scenario. The tooltip is customized as specified in format of tooltip property. Find the code snippet below.
<e-seriestooltip.visible="true"tooltip.format="#series.name#<br/>Date Time : #point.x# <br/> Value : #point.y# ">