How to search and delete a record in an xml file

Hi Experts,

I have a xml file. I do not want duplicate barcodes. How can I search for a barcode.  Suppose in textbox I entered  'test'. Then It should search the file.  Also how to delete a particular ID. For example- suppose I have the ID- 1, then how can I delete it from the file.

Thanks in advance.

<?xml version="1.0" encoding="utf-8" standalone="yes"?>
<XMLDataSet xmlns="ALLBARCODES">
  <Barcodes>
    <ID>0</ID>
    <Barcode>test</Barcode>
  </Barcodes>
  <Barcodes>
    <ID>1</ID>
    <Barcode>test1</Barcode>
  </Barcodes>
  <Barcodes>
    <ID>2</ID>
    <Barcode>Test3</Barcode>
  </Barcodes>
</XMLDataSet>