void LoadMaSP()
{
var conn = Sqlconn.CreateConnection();
conn.Open();
var cm = (SqlCommand)Sqlconn.CreateCommand("SELECT MaSP FROM SanPham ", conn);
SqlDataReader dr = cm.ExecuteReader();
while (dr.Read())
{
txtMaSP.Items.Add(dr[0]).ToString();
}
conn.Close();
}
public override void Add_Khach_hang()
{
String query = "INSERT INTO KhachHang VALUES(@MaKH, @TenKH, @SdtKH, @DiaChiKH)";
var conn = Sqlconn.CreateConnection();
conn.Open();
var command = (SqlCommand)Sqlconn.CreateCommand(query, conn);
command.Parameters.AddWithValue("MaKH", str[0]);
command.Parameters.AddWithValue("TenKH", str[1]);
command.Parameters.AddWithValue("SdtKH", str[2]);
command.Parameters.AddWithValue("DiaChiKH", str[3]);
command.ExecuteNonQuery();
conn.Close();
}
public override void Login()
{
DBfactory Sqlconn = SQLdatabase.getInstanceSQL(); //Gọi SQL từ Factory Pattern
var conn = Sqlconn.CreateConnection();
conn.Open();
string sqlSelect = "SELECT count(*) FROM Users WHERE NameLogin = @NameLogin and PassW=@PassW";
var cmd = (SqlCommand)Sqlconn.CreateCommand(sqlSelect, conn);
cmd.Parameters.AddWithValue("NameLogin", account.getUserName());
cmd.Parameters.AddWithValue("PassW", account.getPassword());
var dr = cmd.ExecuteReader();
DataTable dt = new DataTable();
dt.Load(dr);
if (dt.Rows[0][0].ToString() == "1")
{
this.success = true;
Home f = new Home();
f.Show();
}
else
{
this.success = false;
MessageBox.Show("Erorr: Username or Password incorect!");
}
}
public string MaHD()
{
string MaHD;
MaHD = "HD_" + RandomChar(5);
string sqlSelect = "SELECT count(*) FROM HoaDon WHERE MaHD = @MaHD";
var conn = Sqlconn.CreateConnection();
conn.Open();
var cmd = (SqlCommand)Sqlconn.CreateCommand(sqlSelect, conn);
cmd.Parameters.AddWithValue("MaHD", MaHD);
SqlDataReader dr = cmd.ExecuteReader();
DataTable dt = new DataTable();
dt.Load(dr);
if (dt.Rows[0][0].ToString() != "0")
{
MaHD = "HD_" + RandomChar(5);
}
return(MaHD);
}