class CustomerProperty { int propertyId; int customerId; DateTime dateAdd; double propertyValue; bool newData = false; CustomerProperty({this.propertyId, this.customerId, this.dateAdd, this.propertyValue}); CustomerProperty.fromJson(Map json) { this.propertyId = json['propertyId']; this.customerId = json['customerId']; this.dateAdd = json['propertyName']; this.propertyValue = json['propertyValue']; } Map toJson() => {"propertyId": this.propertyId, "customerId": this.customerId, "dateAdd": this.dateAdd, "propertyValue": this.propertyValue}; }