Find all the child node of specific value in C#

[femin]

\[code\]<main> <myself> <pid>1</pid> <name>abc</name> </myself> <myself> <pid>2</pid> <name>efg</name> </myself></main>\[/code\]that is my XML file named simpan. I have two button. next and previous. What i want to do is, all the info will shows off on the TextBox when the user click the button. The searching node will be based on the pid. Next button will adding 1 value of pid (let's say pid=2) and it will search on the node that have the same value of pid=2. it also will show the name for the pid=2. (showing name=abc)Same goes to the previous button where it will reduce 1value of pid (pid=1).Does anybody knows how to do this?//-------------EDIT------------------thank to