ForeignKey column filter combo height

[zenit1]

Hey

I have some foreign key column to countries, like :

columns.ForeignKey(p => p.CountryId,(IEnumerable)ViewData["CountriesLOV"], "id", "name"); 

In filter row it's open filter combobx with huge height with all ~ 180 countries.

How I can define maximum combo height?

Serge