Web Forms :: Formatting Display Of Dynamic Controls (C# / 3.5)?

I'm creating dynamic controls based on a tree structure I built from a database.

Basically each part number in my tree, I want to be able to type in a serial number for, so the form will look something like this:

Part 1 [textbox] [save button]

Subpart of Part 1 [textbox] [save button]

Subpart of Part 1 [textbox] [save button]

Part 2 [textbox] [save button]

and so on. I have the generating of the controls correct right now. However, all of the controls just come out in one line like the following:

Part 1 [textbox] [save button] Subpart of Part 1 [textbox] [save button] Subpart of Part 1 [textbox] [save button] etc..

How do I go about putting a break in between each "row" I'm making so I can obtain the tree format I am looking for?

[Code]....