Easy Steps:
1. Edit
ContactsUI.cs with the following code:
using System;
using MarioSoft.PhoneBook.BO;
using MarioSoft.PhoneBook.BAL;
namespace MarioSoft.PhoneBook.UI
{
class ContactsUI
{
public ContactsUI() {
CreateUI();
}
private void
CreateUI()
{
int option;
do
{
menu();
option
= ReadIntegerInput("Select Menu[1-4]:");
switch (option)
{
case 1:
Insert();
break;
case 2:
Edit();
break;
}
} while ( option!= 4);
}
private void menu()
{
WriteLine("---Menu---");
WriteLine("1. Add Contact");
WriteLine("2. Edit Contact");
WriteLine("4. Quit");
}
private void
DisplayContacts()
{
Contacts[] contacts = ContactsBAL.GetContacts();
WriteLine("\n----------------------------------------------");
WriteLine("ID\tName\tAddress\tContactNo");
foreach (Contacts
contact in contacts)
{
if (contact ==null) break;
WriteLine(contact.Id + "\t" + contact.Name + "\t" + contact.Address + "\t" + contact.ContactNo);
}
WriteLine("----------------------------------------------\n");
}
private void Insert()
{
if (ContactsBAL.Insert(new Contacts
{
Id =
ReadIntegerInput("ID:"),
Name =
ReadStringInput("Name:"),
Address
= ReadStringInput("Address:"),
ContactNo = ReadStringInput("ContactNo:")
}))
{
WriteLine("Save Successfully.");
DisplayContacts();
}
}
private void Edit()
{
int id = ReadIntegerInput("ID:");
if (ContactsBAL.IsFound(id))
{
ContactsBAL.Edit(new
Contacts
{
Id
= id,
Name = ReadStringInput("Name:"),
Address = ReadStringInput("Address:"),
ContactNo = ReadStringInput("ContactNo:")
});
WriteLine("Edited Successfully.");
DisplayContacts();
}
else
{
WriteLine("Not Found.");
}
}
private void Write(string str) {
Console.Write(str);
}
private void
WriteLine(string str) {
Console.WriteLine(str);
}
private int
ReadIntegerInput(String str)
{
Write(str);
return int.Parse(Console.ReadLine());
}
private string
ReadStringInput( string str)
{
Write(str);
return Console.ReadLine();
}
}
}
2. On
the ContactsBO.cs write the following code:
using System;
namespace MarioSoft.PhoneBook.BO
{
class Contacts
{
private int id;
public int Id
{
get { return id; }
set { id = value; }
}
private string name;
public string Name
{
get { return name; }
set { name = value; }
}
private string
address;
public string Address
{
get { return address;
}
set { address = value;
}
}
private string
contactNo;
public string
ContactNo
{
get { return
contactNo; }
set { contactNo = value;
}
}
}
}
3. On
the ContactsBAL.cs write the following code:
using System;
using MarioSoft.PhoneBook.BO;
using MarioSoft.PhoneBook.DAL;
namespace MarioSoft.PhoneBook.BAL
{
class ContactsBAL
{
public static bool Insert(Contacts
contact)
{
ContactsDAL ContactDAL = new
ContactsDAL();
return ContactDAL.Insert(contact);
}
public static Contacts[] GetContacts()
{
ContactsDAL ContactDAL = new
ContactsDAL();
return ContactDAL.GetContacts();
}
public static void Edit(Contacts
contact)
{
ContactsDAL ContactDAL = new
ContactsDAL();
ContactDAL.Edit(contact);
}
public static bool IsFound(int id)
{
ContactsDAL ContactDAL = new
ContactsDAL();
return ContactDAL.IsFound(id);
}
}
}
4. On
the ContactsDAL.cs write the following code:
using System;
using MarioSoft.PhoneBook.BO;
namespace MarioSoft.PhoneBook.DAL
{
class ContactsDAL
{
static Contacts[]
contacts = new Contacts[100];
static int ndx;
public bool Insert(Contacts contact)
{
bool inserted = false;
if (contacts[ndx] == null)
{
contacts[ndx] = contact;
ndx++;
inserted = true;
}
return inserted;
}
public Contacts []
GetContacts()
{
return contacts;
}
public void Edit(Contacts contact)
{
for (int ndx = 0; ndx
< contacts.Length; ndx++)
{
if
(contacts[ndx].Id == contact.Id)
{
contacts[ndx] = contact;
break;
}
}
}
public bool IsFound(int id)
{
bool
found = false;
foreach (Contacts
contact in contacts)
{
if (contact == null) break;
if (contact.Id == id)
{
found = true;
break;
}
}
return found;
}
}
}
5. Put
your code to the test, perfect!, nice jobJ
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