I am having difficulties getting the xml to validate against the schema. The problem is no matter what I do to the xml, it does trigger the error.

Dim r As New XmlTextReader("XmlFile.xml")
Dim v As New XmlValidatingReader(r)
v.ValidationType = ValidationType.Schema
AddHandler v.ValidationEventHandler, AddressOf ValidationCallBack
While r.Read()
End While
r.Close()