This code is part of an application that demonstrates our adopted approach to the separation of GUI and database. The EntityInfo tier is used as a container to carry data objects in and out of the DAL as well as holding the attribute data for BLL objects.
This code is an example of a BLL class.
using System;
using System.Collections.Generic;
using System.Text;
using System.Xml;
using System.Xml.Serialization;
using EntityInfo;
using DataAccess;
namespace BusinessLogic
{
public class User
{
#region private members
// create the DataAccess class
private static readonly UserDB _dal = new UserDB();
// EntityInfo object reference that stores User attributes
private UserInfo _userInfo;
#endregion private members
#region public properties
public String Login
{
get { return _userInfo.Login; }
set { _userInfo.Login = value; }
}
public String Password
{
get { return _userInfo.Password; }
set { _userInfo.Password = value; }
}
public String FirstName
{
get { return _userInfo.FirstName; }
set { _userInfo.FirstName = value; }
}
public String LastName
{
get { return _userInfo.LastName; }
set { _userInfo.LastName = value; }
}
public String Address
{
get { return _userInfo.Address; }
set { _userInfo.Address = value; }
}
public String City
{
get { return _userInfo.City; }
set { _userInfo.City = value; }
}
public String State
{
get { return _userInfo.State; }
set { _userInfo.State = value; }
}
public String Zip
{
get { return _userInfo.Zip; }
set { _userInfo.Zip = value; }
}
public String Phone
{
get { return _userInfo.Phone; }
set { _userInfo.Phone = value; }
}
#endregion public properties
#region constructors
public User(UserInfo uInfo)
{
this._userInfo = uInfo;
}
public User(string login, string password)
{
Users users = new Users();
this._userInfo = users.GetUser(login, password);
}
public User(string login, string password, string firstname, string lastName, string address, string city, string state, string zip, string phone)
{
UserInfo uInfo = new UserInfo();
uInfo.Login = login;
uInfo.Password = password;
uInfo.FirstName = firstname;
uInfo.LastName = lastName;
uInfo.Address = address;
uInfo.City = city;
uInfo.State = state;
uInfo.Zip = zip;
uInfo.Phone = phone;
this._userInfo = uInfo;
}
#endregion constructors
#region public methods
public void AddUser()
{
if (this._userInfo != null)
{
Users users = new Users();
users.AddUser(this._userInfo);
}
}
/// <summary>
/// Checks if a valid instance.
/// </summary>
public bool isValid
{
get
{
bool valid = true;
if (this._userInfo == null)
{
valid = false;
}
else
{
if (this._userInfo.Login == string.Empty || this._userInfo.Password == string.Empty)
{
valid = false;
}
}
return valid;
}
}
#endregion public methods
}
}
