[RESOLVED] c# Hotel Check-In / Check-Out System using objects

EDIT: See Second Post

Basically I am trying to create a program that allows someone to check in new guests to rooms that are available.
This is what I have so far to create my guests and rooms and add the rooms to a list.
I am wanting to know how I can loop through each room in the "AllRooms" List and check whether its property of booked is true or false and check the room type against a combobox which has the 5 types of room in and then display all the room numbers that are not booked and are of that room type in a list box on the right hand side - See screenshot of design. All help appreciated.

Room Types are: Single Room, Double Room, Queen Suite, King Suite, Penthouse Suite
Attachment 126231

RoomClass

Code:

---

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Hotel_Check_In
{
    public class Room
        {
        public static List<Room> AllRooms;
        public int RoomNumber { get { return this.RoomNumber; } set { this.RoomNumber = value; } }
        public string RoomType { get { return this.RoomType; } set { this.RoomType = value; } }
        public Boolean booked { get { return this.booked; } set { this.booked = value; } }
       



        public Room(int roomNumber)
        {
            RoomNumber = roomNumber;  //adds room Number to room number property
        }

        public Room(int roomNumber, string roomType)
        {
            RoomNumber = roomNumber;
            RoomType = roomType;
        }

        public void AddRooms(int noOfRooms, string roomType)    //Add new Rooms (method for adding rooms to list on load)
        {
            if (AllRooms.Count == 0)                      //check if any rooms exist already
            {
                for (int i = 1; i <= noOfRooms; i++)
                {
                    Room newRoom = new Room(i);
                    AllRooms.Add(newRoom);
                    newRoom.RoomType = roomType;
                    newRoom.booked = false;
                }
            } else {
                for (int i = AllRooms.Count + 1; i <= noOfRooms; i++)              //if rooms exist then +1 onto current room total so no room has the same number
                {
                    Room newRoom = new Room(i);
                    AllRooms.Add(newRoom);
                    newRoom.RoomType = roomType;
                    newRoom.booked = false;
                }
            }
        }

        }
}

---

GuestClass

Code:

---

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Hotel_Check_In
{
    public class Guest
    {
        public string Name {get {return this.Name;} set {this.Name = value;}}
        public int rNumber {get {return this.rNumber;} set {this.rNumber = value;}}
        public DateTime arrivalDateTime { get { return this.arrivalDateTime; } set { this.arrivalDateTime = value; } }
        public DateTime leavingDateTime { get { return this.leavingDateTime; } set { this.leavingDateTime = value; } }
        public static List<Guest> AllGuests;
     
    public Guest()
    { }


    public Guest(string name, Room allocatedRoom)
    {
        Name = name;
        rNumber = allocatedRoom.RoomNumber;
       
    }


        public static void CheckIn(string GuestName, Room room, DateTime checkinDateTime, DateTime LeavingDateTime)
      {
            Guest newGuest = new Guest(GuestName, room);
           
           
      }
    } 
}

---

So after a few hours I have finally come up with a way to do what I wanted to achieve with a Tuple type ( I think anyway )

Would someone please be able to tell me why I am getting this error this function Ive created?

Code:

---

Error        1        Cannot implicitly convert type 'System.Collections.Generic.IEnumerable<System.Tuple<int,string>>' to 'System.Tuple<int,string>'. An explicit conversion exists (are you missing a cast?)

---

Code:

---

public Tuple<int,string> checkBookedRooms()
        {
            List<int> RoomNumList = new List<int>();
            List<string> RoomTypeList = new List<string>();

            int i = 0;
         
            foreach(Room room in AllRooms)
            {
                if(room.booked==false)
                {
                    RoomNumList.Add(room.RoomNumber);
                    RoomTypeList.Add(room.RoomType);
                    i++;

                    if(i == AllRooms.Count)
                    {
                        var roomNumbersAvailable = new int[RoomNumList.Count]; RoomNumList.ToArray();
                        var roomTypesAvailable = new string[RoomTypeList.Count]; RoomTypeList.ToArray();
                        var RoomsAvailable = roomNumbersAvailable.Zip(roomTypesAvailable, Tuple.Create);
                        return RoomsAvailable;
                        i = 0;
                    }
                } 
            }
        }

---

After hours of looking through documentation I finally found my solution, Hashtables.
For future reference this is my answer to my question:

Code:

---

public static Hashtable checkBookedRooms(string Rtype)
        {
            Hashtable roomsAvailable = new Hashtable();
            int i = 0;
           
            foreach(Room room in AllRooms)
            {
                i++;
                if(room.booked==false && room.RoomType == Rtype)
                {
                    roomsAvailable.Add(room.RoomNumber, room.RoomType);
                } 
                if(i >= AllRooms.Count)
                {
                    i = 0;
                    return roomsAvailable;
                   
                }
            }
            Console.WriteLine("Room.checkBookedRooms() Returned Null");
            return null;
        }

---