VS 2008 : Populate Treeview From Mysql?

I have looked a long time and only found code with c# ans MSSQL, but i want to do this with VB and MYSQL.I populate my treeview with parentnodes with this code. But how do i get the child nodes to the treeview from my childtable?I have parentnodes in one table and childnodes in another.. Or is it better to have em all in one table? I want to have as many childnode levels as possible.My 2 db tables looks like this now:

Table parent looks like this: pID as integer (pk), parentName as varchar
Table child looks like this: cID as integer (pk), parentID as integer, childName as varchar

This is my code now, fetching the parentnodes..

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If Page.IsPostBack = False Then
Dim oConn As MySqlConnection = DBConn.getConn("dbname")
oConn.Open()

[code]....