解决ExecuteReader requires the command to have a transaction when the connection assigned to the command is in a pending local transaction.

ExecuteReader requires the command to have a transaction when the connection assigned to the command is in a pending local transaction.

同一个connection,在update的command上启动了一个transaction,后面一个查询的command,没有设置transaction属性,所以出了这个exception.

解决方法:

将update的command加到select的command上去.

 

SqlConnection conn = new SqlConnection("");
            SqlCommand updateCmd = new SqlCommand("update", conn);
            updateCmd.Transaction = conn.BeginTransaction();
            int rows = updateCmd.ExecuteNonQuery();

            SqlCommand selectCmd = new SqlCommand("select ", conn);
            selectCmd.Transaction = updateCmd.Transaction;//important

            SqlDataReader reader = selectCmd.ExecuteReader();
            //.