Complex filter ADO.NET

[miho1]

At me filter:
dv. RowFilter = " Name LIKE ' A * ' "
Also works. But when I complicate it :
dv. RowFilter = " Name LIKE ' A * ' And Year > 18 "
Shows error " Cast from string " Name Like'A * ' " to type 'Long' is not valid ".
Someone can tell where my mistake?

I shall be very grateful

Miho