public static string KiemTraHoaDon(int maLichBan)
{
DbCommand command = DataAccessCode.CreateCommand();
command.CommandText = "dbo.KiemTraHoaDon";
//// create a new parameter
DbParameter param = command.CreateParameter();
param.ParameterName = "@MaLichBan";
param.Value = maLichBan;
param.DbType = DbType.Int32;
command.Parameters.Add(param);
string flag = DataAccessCode.ExecuteScalar(command);
return(flag);
}