string genre = "project.Variables["genre"].Value";
Dictionary<string, string> d = new Dictionary<string, string>
{
{"drama", "1"},
{"МЮЗиКЛ", "2"},
{"бОЕВИК", "3"},
{"СЕМейНЫЙ", "4"}
};
foreach (KeyValuePair<string, string> k in d)
if (genre.ToLower() == k.Key.ToLower())...