Add multiple items to a list

Question

static class Program       static void Main string carMake  string carModel  string carColour  string bikeModel  string bikeMake  string bikeColour  string truckMake  string truckModel  string truckColour                car Mynewcar   new car            motorbike Mynewbike   new motorbike            truck Mynewtruck   new truck             int choice   0          while  choice    5                         Console WriteLine  MENU                Console WriteLine  What service do you need                Console WriteLine  1  Car                Console WriteLine  2  Motorbike                Console WriteLine  3  Truck                Console WriteLine  4  Search                Console WriteLine  5  Exit                 choice   int Parse Console ReadLine                  switch  choice                                case 1                      Console WriteLine  What is the car make                         Mynewcar make   Console ReadLine   ToLower                        carMake   Console ReadLine                        Console WriteLine                           Console WriteLine  What is the car model                         Mynewcar model   Console ReadLine   ToLower                        carModel   Console ReadLine                        Console WriteLine                           Console WriteLine  What is the car Colour                         Mynewcar colour   Console ReadLine   ToLower                        carColour   Console ReadLine                        Console WriteLine                           break                  case 2                      Console WriteLine  what is the motorbike make                        Mynewbike make   Console ReadLine   ToLower                        bikeMake   Console ReadLine                        Console WriteLine                           Console WriteLine  what is the motorbike model                        Mynewbike model   Console ReadLine   ToLower                        bikeModel   Console ReadLine                        Console WriteLine                           Console WriteLine  what is the motorbike colour                        Mynewbike colour   Console ReadLine   ToLower                        bikeColour   Console ReadLine                        Console WriteLine                           break                  case 3                      Console WriteLine  what is the trucks make                        Mynewtruck make   Console ReadLine   ToLower                        truckMake   Console ReadLine                        Console WriteLine                           Console WriteLine  what is the trucks model                        Mynewtruck model   Console ReadLine   ToLower                        truckModel   Console ReadLine                        Console WriteLine                           Console WriteLine  what is the trucks colour                        Mynewtruck colour   Console ReadLine   ToLower                        truckColour   Console ReadLine                        Console WriteLine                           break                  case 4                      string searchchoice                           Console WriteLine  select Car  Motobike or truck to search                         searchchoice   Console ReadLine   ToLower                        if  searchchoice Equals  car                                                  Console WriteLine  Car in inventory   0  -  1  -  2    carMake  carModel  carColour                                             else if  searchchoice Equals  motorbike                                                  Console WriteLine  Motorbike in inventory   0  -  1  -  2    bikeMake  bikeModel  bikeColour                                             else                                               Console WriteLine  Trucks in inventory   0  -  1  -  2    truckMake  truckModel  truckColour                                             Console ReadLine                        break                  case 5                      break                  default                      Console WriteLine  Sorry  invalid selection                        break                                     class car               public string make   get  set            public string model   get  set            public string colour   get  set             public List lt String gt  carList car Mynewcar                        List lt String gt  caradd   new List lt String gt                 caradd Add Mynewcar make               string carMake   Mynewcar make               caradd Add Mynewcar model               string carModel   Mynewcar model               caradd Add Mynewcar colour               string carColour   Mynewcar model                return caradd                       class motorbike   car               public List lt String gt  bikeList motorbike Mynewbike                        List lt String gt  bikeadd   new List lt String gt                 bikeadd Add Mynewbike model               string bikeModel   Mynewbike model               bikeadd Add Mynewbike make               string bikeMake   Mynewbike make               bikeadd Add Mynewbike colour               string bikeColour   Mynewbike colour               return bikeadd                      class truck   car               public List lt String gt  truckList truck Mynewtruck                        List lt String gt  truckadd   new List lt String gt                 truckadd Add Mynewtruck make               string truckMake   Mynewtruck make               truckadd Add Mynewtruck model               string truckModel   Mynewtruck model               truckadd Add Mynewtruck colour               string truckColour   Mynewtruck colour               return truckadd                      I was just wondering whether anyone could have a look through my code to see which areas I can improve on   Also I am struggling to add more than one item to the lists for car  bike and truck  How would you do it so you can add multiple instances of the properties and list them to the console

User · Answer

Another useful way is with Concat  More information in the official documentation   List lt string gt  first   new List lt string gt     One    Two    Three     List lt string gt  second   new List lt string gt       Four    Five     first Concat second     The output will be   One Two Three Four Five   And there is another similar answer

User · Answer

Code check   This is offtopic here but the people over at CodeReview are more than happy to help you   I strongly suggest you to do so  there are several things that need attention in your code  Likewise I suggest that you do start reading tutorials since there is really no good reason not to do so   Lists   As you said yourself  you need a list of items  The way it is now you only store a reference to one item  Lucky there is exactly that to hold a group of related objects  a List   Lists are very straightforward to use but take a look at the related documentation anyway    A very simple example to keep multiple bikes in a list   List lt Motorbike gt  bikes   new List lt Motorbike gt      bikes add new Bike   make    Honda   color    brown      bikes add new Bike   make    Vroom   color    red        And to iterate over the list you can use the foreach statement   foreach var bike in bikes         Console WriteLine bike make

User · Answer

Thanks to AddRange    Example   public class Person        private string Name      private string FirstName       public Person string name  string firstname    gt   Name  FirstName     name  firstname       To add multiple Person to a List lt  gt    List lt Person gt  listofPersons   new List lt Person gt     listofPersons AddRange new List lt Person gt        new Person  John1    Doe         new Person  John2    Doe         new Person  John3    Doe

[c#] Add multiple items to a list

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