1
MySqlCommand status =
new MySqlCommand("select name_ru from request_status where id = '50'", conn);
MySqlDataReader dr_status = status.ExecuteReader();
dr_status.Read();
MySqlCommand cmd = new MySqlCommand(query, conn);
dt.Load(cmd.ExecuteReader());
MySqlDataReader dr = cmd.ExecuteReader();
MySqlDataReader must be closed first
请帮助...
你为什么要这么多次调用ExecuteReader?在使用另一个阅读器之前,您必须关闭一个开放阅读器 – 2012-07-12 09:56:47
为什么要执行两次读取器? – 2012-07-12 09:56:48