private LibraryProxy(DBFactoryEnums factoryEnums)
{
ILibraryFactory libraryFactory;
switch (factoryEnums)
{
case DBFactoryEnums.MsAccess:
libraryFactory = new Ms_Access.LibraryFactory();
break;
case DBFactoryEnums.MsAccessPassword:
libraryFactory = new MsAccessPassword.LibraryFactory();
break;
case DBFactoryEnums.MDBPassword:
libraryFactory = new MDBPassword.LibraryFactory();
break;
case DBFactoryEnums.MySql:
libraryFactory = new MySql.LibraryFactory();
break;
case DBFactoryEnums.MsSQLServerExpress:
libraryFactory = new MsSQLServerExpress.LibraryFactory();
break;
default:
throw new NotImplementedException();
}
AccountMehod = libraryFactory.CreateAccount();
BookMethod = libraryFactory.CreateBook();
BorrowMehod = libraryFactory.CreateBorrow();
}
private void btnGuest_Click(object sender, EventArgs e)
{
DBFactoryEnums db = (DBFactoryEnums)cboDbOption.SelectedIndex + 1;
LibraryProxy library = LibraryProxy.GetInstance(db);
library.GuestAccount();
GoToMain();
}
public static LibraryProxy GetInstance(DBFactoryEnums db)
{
if (libraryProxy == null || DbFactory != db)
{
DbFactory = db;
libraryProxy = new LibraryProxy(db);
}
return(libraryProxy);
}
private void btnLogIn_Click(object sender, EventArgs e)
{
DBFactoryEnums db = (DBFactoryEnums)cboDbOption.SelectedIndex + 1;
LibraryProxy library = LibraryProxy.GetInstance(db);
if (!library.Login(txtUsername.Text.Trim(), txtPassword.Text))
{
MessageBox.Show("Please Insert Username and Password");
}
if (library.account.AccountLevel >= AccountLevelEnums.Patron)
{
MessageBox.Show("Login success.");
GoToMain();
}
}
