public override int GetHashCode()
 {
     unchecked
     {
         int hashCode = (DisplayText != null ? DisplayText.GetHashCode() : 0);
         hashCode = (hashCode * 397) ^ (FullText != null ? FullText.GetHashCode() : 0);
         hashCode = (hashCode * 397) ^ (EvalText != null ? EvalText.GetHashCode() : 0);
         return(hashCode);
     }
 }