public override int GetHashCode() { var hashCode = 1754935533; hashCode = hashCode * -1521134295 + Date.GetHashCode(); hashCode = hashCode * -1521134295 + EqualityComparer <string> .Default.GetHashCode(Customer); hashCode = hashCode * -1521134295 + Status.GetHashCode(); hashCode = hashCode * -1521134295 + Prepaid.GetHashCode(); hashCode = hashCode * -1521134295 + Summ.GetHashCode(); hashCode = hashCode * -1521134295 + EqualityComparer <string> .Default.GetHashCode(Description); return(hashCode); }