/// <summary> </summary> protected override void DoWork(CodeActivityContext context) { Success.Set(context, true); var obrId = ObrId.Get(context); var dataItemThresholds = DataItemThresholds.Get(context); if (dataItemThresholds == null) { return; } ObsDef obsDefEntity = ObsDef.GetEntityByObdGuid(dataItemThresholds.ObdGuid, PM); if (obsDefEntity.IsNullEntity) { return; } var query = new EntityQuery(typeof(ObsReq)); query.AddClause(ObsReqDataRow.OBR_IDEntityColumn, EntityQueryOp.EQ, obrId); var obsReqEntity = PM.GetEntity <ObsReq>(query); if (obsReqEntity.IsNullEntity) { return; } query = new EntityQuery(typeof(Observe)); query.AddClause(ObserveDataRow.OBD_IDEntityColumn, EntityQueryOp.EQ, obsDefEntity.OBD_ID); query.AddClause(ObserveDataRow.Pat_ID1EntityColumn, EntityQueryOp.EQ, obsReqEntity.Pat_ID1); query.AddClause(ObserveDataRow.OBR_SET_IDEntityColumn, EntityQueryOp.EQ, obsReqEntity.OBR_Set_ID); var observeEntity = PM.GetEntity <Observe>(query); if (observeEntity.IsNullEntity) { return; } var success = CommonCharting.CheckDataItemThresholds(observeEntity, dataItemThresholds); Success.Set(context, success); }