public override int GetHashCode() { unchecked { var hashCode = (ExampleCategory != null ? ExampleCategory.GetHashCode() : 0); hashCode = (hashCode * 397) ^ (ChartGroup != null ? ChartGroup.GetHashCode() : 0); hashCode = (hashCode * 397) ^ (ExampleTitle != null ? ExampleTitle.GetHashCode() : 0); return(hashCode); } }