Partial page - Load Div - In Ajax

Hi Team,

To Load the partial view in MVC5 i was using Ajax.ActionLink , But in MVC core 2.0, i couldnt load the @Ajax object itself.

error in the screen shot below:

https://ibb.co/kL1U8T

How i can achieve it in Core?

My scenario will be there will be rows in the grid.

In each row there will be a button (Approve), on the click of the Approve button i have to replace the Approve button with  text box (Approval Date) and Submit button.

on click of submit button, i have to replace the full div  which has (Text box and Submit button) with Label  ie. Submitted Successfully.

<div id="Dashboard_1">
 @Ajax.ActionLink(
"Approve", "ClassBookingResult", "Educator",
 new { ClassID = item.ClassID},
 new AjaxOptions
 {
 InsertionMode = InsertionMode.Replace,
 UpdateTargetId = "Dashboard_1"
 },
 new { @class = "btn btn-success" })</div>