How can I create a search function with a textbox

Question

Hi

I'm creating a windows application and need some help here.

I have a treeview with hundreds of nodes. I would like to create an advanced search function using a textbox. If I type "a" it should scroll to all nodes beginning with an "A" and select the first node. If I type "Ab" then scroll to the first node with those letters etc, etc. Until it stops by the text that is less than or equal to the text entered into the text box e.g. "Abreviation".

Thanks