/// <summary>
/// get user type of a user
/// </summary>
/// <param name="aUser"></param>
/// <returns>typeNumber</returns>
public int GetType(User aUser)
{
int typeNumber = 0;
List <User> list = UserDataMangement.ReadUserDA();
foreach (var item in list)
{
if (item.Equals(aUser))
{
typeNumber = item.UserType;
break;
}
}
return(typeNumber);
}
/// <summary>
/// search user by id
/// </summary>
/// <param name="id"></param>
/// <returns>a user/null</returns>
public User GetUserInformation(String empId)
{
User aUserFound = null;
//read the original txt
List <User> listOfUser = UserDataMangement.ReadUserDA();
//add to found list
foreach (User aUser in listOfUser)
{
if (aUser.empId == empId)
{
aUserFound = aUser;
break;
}
}
return(aUserFound);
}
/// <summary>
/// check a user is in the file,it means that user name and password all are correct
/// </summary>
/// <param name="aUser">a user object</param>
/// <returns>true/false</returns>
public bool CheckUser(User aUser)
{
List <User> list = UserDataMangement.ReadUserDA();
bool find = false;
foreach (var item in list)
{
if (item.Equals(aUser))
{
find = true;
break;
}
}
if (find == false)
{
MessageBox.Show("Wrong Employee ID or Password, please retry.");
}
return(find);
}
/// <summary>
/// search a list of user according to parameter
/// </summary>
/// <param name="user"></param>
/// <returns>list of users</returns>
public List <User> SearchInformation(User user)
{
//read the original txt
List <User> listOfUser = UserDataMangement.ReadUserDA();
List <User> listOfFound = new List <User>();
//add to found list
foreach (User aUser in listOfUser)
{
if ((user.empId != "") && (aUser.empId == user.empId))
{
listOfFound.Add(aUser);
break;
}
else if ((user.UserType != 0) && (aUser.userType == user.userType))
{
listOfFound.Add(aUser);
}
}
return(listOfFound);
}
/// <summary>
/// delete an user in the file
/// </summary>
/// <param name="user"></param>
public void DeleteInformation(User user)
{
//read the original txt
List <User> listOfOldUser = UserDataMangement.ReadUserDA();
List <User> listOfNewUser = new List <User>();
//delete the line
foreach (User aUser in listOfOldUser)
{
if (!aUser.Equals(user))
{
listOfNewUser.Add(aUser);
}
}
//delete file
UserDataMangement.DeleteUserFile();
//save a new list
foreach (User newUser in listOfNewUser)
{
UserDataMangement.WriteUserDA(newUser);
}
}
//implemtment the interface
/// <summary>
/// save an employee to file
/// </summary>
/// <param name="emp"></param>
public void SaveInformation(Employee emp)
{
EmployeeDataMangement.WriteEmployeeDA(emp);
CreateUser(); //create user information, composition relationship
UserDataMangement.WriteUserDA(aUser);
}
//implemtment the interface
/// <summary>
/// save an user to file
/// </summary>
/// <param name="user"></param>
public void SaveInformation(User user)
{
UserDataMangement.WriteUserDA(user);
}
