public new List <Class_Que> Select()
{
string sql = "SELECT * FROM Que";
List <Class_Que> list = new List <Class_Que>();
SqlConnection con = new SqlConnection();
con.ConnectionString = @"Data Source=MINH_VU_PC\SQLEXPRESS;Initial Catalog=BTL;Integrated Security=True";
con.Open();
SqlCommand cmd = new SqlCommand(sql, con);
using (DbDataReader reader = cmd.ExecuteReader())
{
if (reader.HasRows)
{
while (reader.Read())
{
string MaQue = reader.GetString(0);
string TenQue = reader.GetString(1);
Class_Que que = new Class_Que(MaQue, TenQue);
list.Add(que);
}
}
}
con.Close();
return(list);
}
public void delete(Class_Que que)
{
string sql = "DELETE FROM Que WHERE MaQue = " + que.MaQue1;
query.insert(sql);
query.insert(sql);
}
public void update(Class_Que que)
{
string sql = "UPDATE Que WHERE SET MaQue = " + que.MaQue1 + ",TenQue=N'" +
que.TenQue1 + "')";
query.insert(sql);
}
public void insert(Class_Que que)
{
string sql = "INSERT INTO Que(MaQue,TenQue) VALUES(";
sql += que.MaQue1 + ",N'" + que.TenQue1 + "')";
query.insert(sql);
}
public new List <Class_Que> Select()
{
string sql = "SELECT * FROM Que";
List <Class_Que> list = new List <Class_Que>();
using (DbDataReader reader = query.Reader(sql))
{
if (reader.HasRows)
{
while (reader.Read())
{
string MaQue = reader.GetString(0);
string TenQue = reader.GetString(1);
Class_Que que = new Class_Que(MaQue, TenQue);
list.Add(que);
}
}
}
query.DongketnoiSQL();
return(list);
}
