public override int GetHashCode() { unchecked { int hashCode = base.GetHashCode(); hashCode = (hashCode * 397) ^ DisplayColumn.GetHashCode(); hashCode = (hashCode * 397) ^ (OuterPivotKey != null ? OuterPivotKey.GetHashCode() : 0); hashCode = (hashCode * 397) ^ (InnerPivotKey != null ? InnerPivotKey.GetHashCode() : 0); return(hashCode); } }