New to Classes

[fremenusul]

created a class to hold my XML DOM data.

visual basic
code:--------------------------------------------------------------------------------Public Class Settings

Public Shared xmlDoc As XmlDocument

Public Shared Property thexml() As XmlDocument
Get
If xmlDoc Is Nothing Then
Dim xmlFile As String = xmlLocation()
Dim xmlDoc As XmlDocument

xmlDoc = New XmlDocument
xmlDoc.Load(xmlFile)
End If

Return xmlDoc
End Get
Set(ByVal Value As XmlDocument)
xmlDoc = Value 'no real need to validate
End Set
End Property
End
Class--------------------------------------------------------------------------------

I am trying to get it to display the id field in a combobox I am not sure
how to do this. I tried this but I was getting some nullexception error.
visual basic
code:-------------------------------------------------------------------------------- Dim xDoc As Settings
xDoc = New Settings

Dim xNodeList As XmlNodeList
Dim xNode As XmlNode

Dim xDoc2 = xDoc.thexml


xNodeList = xDoc2.SelectNodes("/products/product/id")

For Each xNode In xNodeList

cmbProducts.Items.Add(xNode.InnerText)

Next--------------------------------------------------------------------------------

here is my xml in caase it makes a difference...
Code:
<?xml version="1.0" encoding="utf-8" ?>

<products>
<!-- Repeat the structure below for each product. -->
<product>
<id>CP-90, T-32</id>
<company>Carwell</company>
<address>Street Address</address>
<city>City</city>
<state>State</state>
<zip>Zip</zip>
</product>

<!-- Next product here-->
</products>

Please help, I am at a total loss.....