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

[Emcrank]

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


RoomClass

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

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);
            
            
       }
    }  
}