如何对列表框中的集合进行流畅的重新排序？

The situation is like this: I have an Observable Collection that has a bunch of objects in it which I then display to a listbox using a binding. Then periodically, I get a message from an external server that gives me a new (or possibly the same) ordering for these objects. Right now, I just clear the observable collection, and add each item back in using the specified ordering.The situation is like this: I have an Observabl