How to use xpath

Have you checked out:
http://builder.com.com/5100-22-5035074.html

Please stop referring me to another website, I have been there repeatedly.  Can someone show me a practical example of how to navigate from node to node.

Say I have a text box with text that = the content of a node in a xml file.  And I want to go to that node.  What would that code look like?

Say you have the following XML document saved in a file called "C:\Customers.xml":

<Customers>
  <Customer ID="1">
    <Firstname>Bob</Firstname>
    <Lastname>Smith</Lastname>
  </Customer>
  <Customer ID="2">
    <Firstname>Ben</Firstname>
    <Lastname>Jones</Lastname>
  </Customer>
  <Customer ID="3">
    <Firstname>David</Firstname>
    <Lastname>Brent</Lastname>
  </Customer>
  <Customer ID="4">
    <Firstname>John</Firstname>
    <Lastname>Doe</Lastname>
  </Customer>
  <Customer ID="5">
    <Firstname>Jane</Firstname>
    <Lastname>Doe</Lastname>
  </Customer>
</Customers>

You could then add each customer to a list box with something like:

        Dim doc As New XmlDocument()
        doc.Load("C:\Customers.xml")

        Dim nodes As XmlNodeList = doc.SelectNodes("//Customer")
        Dim sName As String

        For Each customer As XmlNode In nodes
            sName = customer.ChildNodes(1).InnerText)
            ListBox1.Items.Add(sName)
        Next

Then, using the listboxes SelectedIndexChanged event, you could grab the Customer node corresponding to the Name selected in the list:

    Private Sub ListBox1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ListBox1.SelectedIndexChanged

        Dim node As XmlNode
        node = doc.SelectSingleNode("//Customer[Lastname='" + ListBox1.SelectedItem + "']")

    End Sub

so this method doesn't even need xpath?

It uses XPath:

    "//Customers"

And:

    "//Customer[Lastname='Smith']"       (as it might equate)

Are both XPath expressions used, in the first example, to retrieve all Customer nodes, and, in the second sample, a single Customer node based on the value of the child "Lastname" node.

Okay...so say I want to delete the parent node of the selected node......so delete the entire customer David entry?

You are the man, carl.  Thank you so much.

Troy