clear a specific node

Hi
I have a treeview containing many nodes.Each node contains its sub nodes.
For example my treeview look like:
Item1
Item11
Item12
Item2
Item3
Item4

What should I do if I want to delete Item1 Node and all its subnodes(item11 and item12) without deleting the other nodes?
thanks

VB Code:

For i = 1 to TreeView.Nodes.Count
     If TreeView.Node.Item(i).Text = "Item01" Then
         TreeView.Node.Remove i
     End If
Next i

This would remove a specific item text

I'm not sure about sub nodes but it might be like the following

VB Code:

TreeView.Node.Remove TreeView.Node(i).Children

You don't have to delete SubItems if the Parent will be deleted.