Treeview - Maintain last state?

[Mel]

I fluent in Visual Basic programming Windows applications but I am a
brand new user to ASP.NET (I'm on my 3rd day now, woo hoo!). I was
wondering if there is a way to remember the last state of the treeview
control between pages. For example, when I first open the treeview
page I navigate the tree to the area I am interested in, then when I
go to a different page and come back to the treeview page the treeview
has reverted back to it's default state. Like I said, I am a newbie
so if there is a way to do it please be VERY specific.

Thanks in advance,
Mel