Hello , 

how about scrolling with Visualization feature ( https://www.igniteui.com/grid/virtualization-continuous ) 

with virtualization, table only render 1,000 records . so the  "find("tr[data-id='<primary key value>’]").first().position().top" will not work if data list have more than 1000 rows .

we used find index and re-calculated by index * row height , but when user use sort , the index in grid was changed