PetaPoco ORM 增加返回DataTable的方法

 1 public DataTable ExecuteDataTable(Sql sql)
 2 {
 3     return ExecuteDataTable(sql.SQL, sql.Arguments);
 4 }
 5 public DataTable ExecuteDataTable(string sql, params object[] args)
 6 {
 7     try
 8     {
 9         OpenSharedConnection();
10         try
11         {
12             using (var cmd = CreateCommand(_sharedConnection, sql, args))
13             {
14                 var val = cmd.ExecuteReader();
15                 OnExecutedCommand(cmd);
16                 var dt = new DataTable();
17                 dt.Load(val);
18                 return dt; //(T)Convert.ChangeType(val, typeof(T));
19             }
20         }
21         finally
22         {
23             CloseSharedConnection();
24         }
25     }
26     catch (Exception x)
27     {
28         OnException(x);
29         throw;
30     }
31 }