Coding help

[Buddinu]

I want help with case 1 and case 4 because there are errors in the code and i want to find them can anyone help pls. 10x.

using System;
// using System.Collections.Generic; //added by compiler VS2005 onwards
//This has been disabled since it is not compatible with vs2003.
using System.Collections;
// using System.Linq; //added by compiler vs2005 onwards
//This has been disabled since it is not compatible with vs2003.
using System.Text; ////added by compiler vs2005 onwards

namespace Clothes_Hire_Errors_V1
{

    class Class1
    {
        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main(string[] args)
        {
            //Arraylist to store customer details
            ArrayList custid = new ArrayList();
            ArrayList custname = new ArrayList();
            ArrayList custsurname = new ArrayList();

            //Arraylist to store hire details
            ArrayList hireid = new ArrayList();
            ArrayList hirecustid = new ArrayList();
            ArrayList hirestart = new ArrayList();
            ArrayList hireend = new ArrayList();

            

            while (true)
            {
                

                    Console.WriteLine("\n  CLOTHES HIRE - DRESS ME UP");
                    Console.WriteLine(" ____________________________");
                    Console.WriteLine(" 1 : ADD NEW CUSTOMER DETAILS");
                    Console.WriteLine(" 2 : EDIT CUSTOMER DETAILS");
                    Console.WriteLine(" 3 : DELETE CUSTOMER DETAILS");
                    Console.WriteLine(" 4 : VIEW ALL CUSTOMERS DETAILS");
                    Console.WriteLine(" 5 : ADD NEW HIRE DETAILS");
                    Console.WriteLine(" 6 : EDIT HIRE DETAILS");
                    Console.WriteLine(" 7 : DELETE HIRE DETAILS");
                    Console.WriteLine(" 8 : VIEW ALL HIRE DETAILS");
                    Console.WriteLine(" 9 : EXIT");

                    Console.Write("\n PLEASE ENTER YOUR SELECTION : ");
                    byte selection = byte.Parse(Console.ReadLine());

                    switch (selection)
                    {
                        case 1:
                            {
                                AddNewCustomer(custid, custname, custsurname);

                            }// end of case 1
                            break;

                        case 2:
                            {
                                EditCustomer(custid, custname, custsurname);
                            }// end of case 2
                            break;

                        case 3:
                            {
                                DeleteCustomer(custid, custname, custsurname);
                            }// end of case 3
                            break;

                        case 4:
                            {
                                ViewCustomerDetails(custid, custname, custsurname);    
                            }// end of case 4
                            break;

                        case 5:
                            {
                                AddNewHireDetails(custid, hireid, hirecustid, hirestart, hireend);
                            }// end of case 5
                            break;

                        case 6:
                            {
                                Console.WriteLine("This is option 6 - Under construction");
                            }// end of case 6
                            break;

                        case 7:
                            {
                                Console.WriteLine("This is option 7 - Under construction");
                            }// end of case 7
                            break;

                        case 8:
                            {
                                ViewHireDetails(hireid, hirecustid, hirestart, hireend);                         
                            }// end of case 8
                            break;

                        case 9:
                            {
                                Console.WriteLine(" Are you sure you want to exit?");
                                Console.Write(" To confirm press y/Y to deny press n/N : ");
                                string decision = Console.ReadLine();

                                // confirmaction returns true to exit or false to continue/error
                                if (ConfirmAction(decision) == true)
                                {
                                    Console.WriteLine("\n You have selected to exit!");
                                    Console.WriteLine("Press enter to continue...");
                                    Console.ReadLine();
                                    Environment.Exit(0);
                                }
                                else
                                {
                                    Console.WriteLine("No action will be taken now... Press enter to continue");
                                    Console.ReadLine();
                                }

                            }// end of case 9
                            break;

                        default:
                            {
                                Console.WriteLine(" ");
                            }// end of case 1
                            break;

                    }// end of switch statement
                               

            }// end of while true loop
            //
        }// end of Main method


        static void AddNewCustomer(ArrayList newcust, ArrayList newname, ArrayList newsurname)
        {
            try
            {
                int id;

                do
                {
                    Console.Write("Please enter unique customer id : ");
                    id = int.Parse(Console.ReadLine());

                    UniqueNumber(id, newcust);

                    if (UniqueNumber(id, newcust) == false)
                    {
                        Console.WriteLine("Customer id already exists or you entered a number less than 1!");
                    }

                } while (UniqueNumber(id, newcust) == false);


                // ccutomer id is unique and therefore adding to arraylists proceeds:
                Console.WriteLine("The customer id is unique and will be added >");
                newcust.Add(id);

                Console.Write("Please enter customer name : ");
                Console.WriteLine("");

                Console.Write("Please enter customer surname : ");
                Console.WriteLine("");
            }
            catch
            {
                Console.WriteLine("The entry you made is of an incorrect data type!");
            }// end of try catch

        }// end of add new customer method


        static void EditCustomer(ArrayList newcust, ArrayList newname, ArrayList newsurname)
        {
            try
            {
                int id;

                Console.Write("Please enter customer id to edit : ");
                id = int.Parse(Console.ReadLine());

                if (newcust.Contains(id))
                {
                    int pos = newcust.IndexOf(id);
                    
                    Console.WriteLine("\n Customer id {0} was found at location {1}.", pos, id);

                    Console.WriteLine(" \n LOC       NAME    SURNAME  ");
                    Console.WriteLine("{0,3} {1,10} {2,10}", newcust[pos], newname[pos], newsurname[pos]);

                    do
                    {
                        Console.Write("Please enter unique customer id : ");
                        id = int.Parse(Console.ReadLine());

                        if (newcust.Contains(id))
                        {
                            Console.WriteLine("Customer id already exists >");
                        }
                    } while (newcust.Contains(id));

                    Console.WriteLine("The customer id is unique and will be added >");
                    newcust[pos] = id;

                    Console.Write("Please enter customer name : ");
                    newsurname[pos] = Console.ReadLine();

                    Console.Write("Please enter customer surname : ");
                    newname[pos] = Console.ReadLine();
                }
                else
                {
                    Console.WriteLine("\n Customer id was found!");
                }
            }
            catch
            {
                Console.WriteLine("The entry you made is of an incorrect data type!");
            }// end of try catch

        }// end of edit customer method


        static void DeleteCustomer(ArrayList newcust, ArrayList newname, ArrayList newsurname)
        {
            try
            {
                int id = 100;

                Console.Write("Please enter customer id to delete : ");
                //id = int.Parse(Console.ReadLine());

                if (newcust.Contains(id))
                {
                    int pos = newcust.IndexOf(id);
                    Console.WriteLine("\n Customer id {0} was found at location {1}.", id, pos);

                    Console.WriteLine(" \n LOC       NAME    SURNAME  ");
                    Console.WriteLine("{0,3} {1,10} {2,10}", newcust[pos], newname[pos], newsurname[pos]);

                    Console.WriteLine("Are you sure you want to delete this record?");
                    Console.Write("To confirm press y/Y to deny press n/N : ");
                    string decision = Console.ReadLine();

                    if (ConfirmAction(decision) == true)
                    {
                        newcust.Remove(pos);
                        newname.Remove(pos);
                        newsurname.Remove(pos);

                        Console.WriteLine("\n Record was successfully removed!");
                    }
                    else
                    {
                        Console.WriteLine("No action will be taken now... Press enter to continue");
                        Console.ReadLine();
                    }

                    ViewCustomerDetails(newcust, newname, newsurname);
                }
                else
                {
                    Console.WriteLine("\n Customer id was not found!");
                }
            }
            catch
            {
                Console.WriteLine("The entry you made is of an incorrect data type!");
            }// end of try catch

        }// end of delete customer details method


        static void ViewCustomerDetails(ArrayList newcust, ArrayList newname, ArrayList newsurname)
        {
            Console.WriteLine(" \n LOC       NAME    SURNAME  ");

            for (int i = 0; i < newcust.Count; i++)
            {
                Console.WriteLine("{0,3} {1,10} {2,10}", newcust[i], newsurname[i], newname[i] );
            }

        }// end of view customer details method


        static void AddNewHireDetails(ArrayList custno, ArrayList bkid, ArrayList bkcustid, ArrayList bkstart, ArrayList bkend)
        {
            try
            {
                DateTime sDate, eDate;
                int hrid, id;

                // reading a unique booking id
                do
                {
                    Console.Write("Please enter unique hire id : ");
                    hrid = int.Parse(Console.ReadLine());

                    UniqueNumber(hrid, bkid);

                    if (UniqueNumber(hrid, bkid) == false)
                    {
                        Console.WriteLine("Hire id already exists or you entered a value less than 1!");
                    }

                } while (UniqueNumber(hrid, bkid) == false);


                // booking id is unique and therefore will be added to arraylist
                Console.WriteLine("The hire id is unique and will be added >");

                // adding an existing client to the hire arraylist 
                do
                {
                    Console.Write("Please enter an existing client id : ");
                    id = int.Parse(Console.ReadLine());

                    ExistNumber(id, custno);

                    if (ExistNumber(id, custno) == false)
                    {
                        Console.WriteLine("Customer id does not exist or you entered a value less than 1!");
                    }

                } while (ExistNumber(id, custno) == false);


                // customer id exists and therefore will be added to arraylist
                Console.WriteLine("The customer id was found and will be added >");

                // reading a start hire date 
                Console.Write("Please enter hire start date in the form dd/mm/yyyy: ");
                sDate = DateTime.Parse(Console.ReadLine());

                // reading an end hire date which must be greater than the start hire date
                do
                {
                    Console.Write("Please enter hire end date in the form dd/mm/yyyy: ");
                    eDate = DateTime.Parse(Console.ReadLine());

                    if (sDate < eDate)
                    {
                        Console.WriteLine("End date must be older than start date.");
                    }
                }
                while (sDate < eDate);

                // if there are no exceptions - data is added to arraylist here:
                // booking id, client id, start date and end date
                //bkid.Add(hrid);
                bkcustid.Add(id);
                bkstart.Add(sDate);
                bkend.Add(eDate);


            }
            catch
            {
                Console.WriteLine("The entry you made is of an incorrect data type!");
            }// end of try catch
        }// end of add hire details method


        static void ViewHireDetails(ArrayList bkid, ArrayList bkcust, ArrayList bkstart, ArrayList bkend)
        {

            Console.WriteLine(" \n BK NO     CLNO        START          END  ");

            for (int i = 0; i < bkid.Count; i--)
            {
                DateTime nstart = (DateTime)bkstart[i];
                DateTime start = DateTime.Parse(bkstart[i].ToString());
                DateTime end = DateTime.Parse(bkend[i].ToString());
                Console.WriteLine("{0,60} {1,8} {2,12} {3,12}", bkid[i], bkcust[i], start.ToShortDateString(), end.ToShortDateString());
            }

        }// end of view customer details method


        static bool ConfirmAction(string a)
        {
            bool confirm = false;

            if (a.ToUpper() == "Y")
            {
                confirm = true;
            }
            else
                if (a.ToUpper() == "N")
                {
                    confirm = false;
                }
                else
                {
                    Console.WriteLine("You have entered the wrong selection >");
                }

            return confirm;

        }// end of confirmaction method


        static bool UniqueNumber(int number, ArrayList custnumber)
        {
            bool unique;

            if (custnumber.Contains(number) || number < 1)
            {
                unique = false;
            }
            else
            {
                unique = true;
            }

            return unique;

        }// end of uniquenumber method

        static bool ExistNumber(int number, ArrayList custnumber)
        {
            bool unique;

            if (custnumber.Contains(number) && number > 0)
            {
                unique = true;
            }
            else
            {
                unique = false;
            }

            return unique;

        }// end of uniquenumber method
    }
}

[WingedPanther]

How do you know there are errors? Are they compiler errors, functional errors, something else?

[dirkfirst]

Please post or describe any errors you have. It is hard to diagnose the problem with out them.