public MechanicalEquipmentProperty SaveMechanicalEquipmentProperty(MechanicalEquipmentProperty controlSystemProperty)
        {
            using (CmsEntities cee = new CmsEntities())
            {
                MechanicalEquipmentProperty original = (from x in cee.MechanicalEquipmentProperties where x.Id == controlSystemProperty.Id select x).FirstOrDefault();

                if (original == null)
                {
                    cee.MechanicalEquipmentProperties.Add(controlSystemProperty);
                }
                else
                {
                    cee.Entry(original).CurrentValues.SetValues(controlSystemProperty);
                }

                cee.SaveChanges();
            }
            return controlSystemProperty;
        }
        private void BuildPropertyValues(MechanicalEquipmentComponent componentIn, MechanicalComponentDataAdapter adapter)
        {
            foreach (var pair in adapter.PropertyValues)
            {
                //DOES PROPERTY EXIST?
                MechanicalEquipmentProperty property = (from x in mExistingEquipmentProperties where x.Name.ToLower() == pair.Key.ToLower() select x).FirstOrDefault();
                if (property == null)
                {
                    if (CanCreateProperties)
                    {
                        property = new MechanicalEquipmentProperty {Name = pair.Key, DefaultValue = pair.Value, Description = " (created by importer)."};
                        mExistingEquipmentProperties.Add(property); //update cache
                    }
                    else
                    {
                        //ERROR!
                        RaiseMessage(CommonUtils.MessageType.Error, string.Format("WorkSheet '{0}' Line '{1} Tag {2} Component Name {3}' : The property does not exist.",
                            WorkSheetName, adapter.RowNumber, adapter.Tag, adapter.ComponentName));
                        continue;
                    }
                }

                //CHECK MechanicalEquipmentComponentTypeProperty Exists
                MechanicalEquipmentComponentTypeProperty equipmentComponentTypeProperty = null;
                if (mExistingEquipmentComponentTypeProperty.Any())
                {
                    equipmentComponentTypeProperty =
                        (from x in mExistingEquipmentComponentTypeProperty
                            where x.MechanicalEquipmentComponentType.Name.ToLower() == componentIn.MechanicalEquipmentComponentType.Name.ToLower()
                                  && x.MechanicalEquipmentProperty.Name.ToLower() == property.Name.ToLower()
                            select x).FirstOrDefault();
                }

                if (equipmentComponentTypeProperty == null)
                {
                    if (CanCreateProperties)
                    {
                        //CREATE JOIN ROW
                        equipmentComponentTypeProperty = new MechanicalEquipmentComponentTypeProperty();
                        equipmentComponentTypeProperty.MechanicalEquipmentComponentType = componentIn.MechanicalEquipmentComponentType; //note: set the object!
                        equipmentComponentTypeProperty.MechanicalEquipmentProperty = property; //not set the object!
                        mExistingEquipmentComponentTypeProperty.Add(equipmentComponentTypeProperty); //update cache
                    }
                    else
                    {
                        //ERROR!
                        RaiseMessage(CommonUtils.MessageType.Warning, string.Format("WorkSheet '{0}' Row '{1} Tag {2} Component Type {3}' : The property {4} does not belong to the Component Type.",
                            WorkSheetName, adapter.RowNumber, adapter.Tag, componentIn.MechanicalEquipmentComponentType.Name, property.Name));
                        continue;
                    }
                }
                property.MechanicalEquipmentComponentTypeProperties.Add(equipmentComponentTypeProperty);

                //CHECK PROPERTYVALUE EXISTS
                MechanicalPropertyValue propertyValue = null;
                if (mExistingPropertyValues.Any())
                {
                    propertyValue = (from x in mExistingPropertyValues
                        where x.MechanicalEquipmentComponent.Name.ToLower() == componentIn.Name.ToLower()
                              && x.MechanicalEquipmentProperty.Name.ToLower() == property.Name.ToLower()
                        select x).FirstOrDefault();
                }

                if (propertyValue == null)
                {
                    propertyValue = new MechanicalPropertyValue();
                    propertyValue.MechanicalEquipmentComponent = componentIn;
                    propertyValue.MechanicalEquipmentProperty = property;
                    mExistingPropertyValues.Add(propertyValue); //update cache
                }

                //set value
                if (!string.IsNullOrEmpty(pair.Value))
                {
                    propertyValue.Value = pair.Value.ChangeNullToEmptyString();
                }
                componentIn.MechanicalPropertyValues.Add(propertyValue);
            }
        }