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;
case 3:
Delete();
break;
}
} while ( option!= 4);
}
private void menu()
{
WriteLine("---Menu---");
WriteLine("1. Add Contact");
WriteLine("2. Edit Contact");
WriteLine("3. Delete 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 Delete()
{
int id = ReadIntegerInput("ID:");
if (ContactsBAL.IsFound(id))
{
WriteLine("Deleted Successfully.");
ContactsBAL.Delete(id);
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);
}
public static void Delete(int id)
{
ContactsDAL ContactDAL = new
ContactsDAL();
ContactDAL.Delete(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 void Delete(int id)
{
for (int ndx = 0; ndx
< contacts.Length; ndx++)
{
if (contacts[ndx].Id == id)
{
DeleteContact(ndx);
break;
}
}
}
private void
DeleteContact(int i)
{
for (int ii = i; ii
< contacts.Length; i++)
{
if (contacts[i] == null)
break;
contacts[i] = contacts[i + 1];
}
ndx--;
}
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
Good Day, Sir!
ReplyDeleteHow do we implement it using the Window Application Output type? It is very possible right? Thanks for the help.