Works just fine but I want to do that while populating grid cells.
try
vv:= TJson.parse(Sender.ResponseText);
cv.RowCount:= 182;
for i:= 0 to cv.RowCount - 1 do
Begin
cv.Cells[i,0]:=vv.countryitems['0'][inttostr(i+1)].title;
cv.Cells[i,1]:=vv.countryitems['0'][inttostr(i+1)].total_cases;
cv.Cells[i,2]:=vv.countryitems['0'][inttostr(i+1)].total_new_cases_today;
cv.Cells[i,3]:=vv.countryitems['0'][inttostr(i+1)].total_deaths;
cv.Cells[i,4]:=vv.countryitems['0'][inttostr(i+1)].total_new_deaths_today;
cv.Cells[i,5]:=vv.countryitems['0'][inttost