Tooltip can be shown on Button hover and it can be achieved by setting title attribute.
The following snippets illustrates how to show tooltip on Button hover.
@Html.EJS().Button("primarybtn").Title("Primary Button").Content("Button").IsPrimary(true).Render()
<style>
button {
margin: 25px 5px 20px 20px;
}
</style>public ActionResult tooltip()
{
return View();
}