protected virtual void OnPprDataReceived(PprDataModel e)
 {
     if (PprDataReceived != null)
     {
         PprDataReceived(this, e);
     }
 }
 void Pss_PprDataReceived(object sender, PprDataModel e)
 {
     if (this.canDoMath)
     {
         this.listError.Add(e);
     }
 }