Jul 21, 2015 04:21 AM|Candy Zhou|LINK
According your code and description, you want to use XmlReader to reader data. So, you can refer to the following link:
Also, you want to load data by OrderID ASC or DESC. We know XmlReader only have read property, we cannot sort directly. I suggest you can use XmlReader to get xml data, then save data to the database or list,finally sort the data.
I hope that will help you.