private void detach_Rotatiis(Rotatii entity)
 {
     this.SendPropertyChanging();
     entity.Companii = null;
 }
 private void attach_Rotatiis(Rotatii entity)
 {
     this.SendPropertyChanging();
     entity.Companii = this;
 }
 partial void UpdateRotatii(Rotatii instance);
 partial void DeleteRotatii(Rotatii instance);
 partial void InsertRotatii(Rotatii instance);