在ADO.NET中使用表值参数

string strConn = @"Data Source=.;Initial Catalog=DEMO2;User Id=sa;Password=Auto@sql;";
            string sqlGetData = "SELECT *FROM dbo.T1";
            SqlParameter[] parasGetData = new SqlParameter[]{};
            DataSet ds = SqlHelper.ExecuteDataset(strConn, CommandType.Text, sqlGetData, parasGetData);
            string sqlInsertData = @"INSERT INTO dbo.T2(ID) SELECT ID FROM @vt as T";
            SqlParameter dtPara = new SqlParameter("@vt", ds.Tables[0]);
            dtPara.SqlDbType= SqlDbType.Structured;
            dtPara.TypeName = "dbo.udt_T1";
            SqlParameter[] parasInsertData = new SqlParameter[] { dtPara };
            SqlHelper.ExecuteNonQuery(strConn, CommandType.Text, sqlInsertData, parasInsertData);
            Console.WriteLine("ok");
            Console.ReadLine();