How to query a xml file and fill to an array?

[davidhao]

I know I can query the xml file with xpath. That's the sample xml I was using.

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<Data_file>
  <Game id="2221111">
    <Msg>
      <Event Event_num="110"  Msg_type="0"  
                  LocationX="0" LocationY="0" Name="" />
      <Event Event_num="111"  Msg_type="2" 
                  LocationX="10" LocationY="50" Name="James" />
      <Event Event_num="112"  Msg_type="2"
                 LocationX="0" LocationY="-50" Name="Peter" />
      <Event Event_num="113"  Msg_type="2"
                  LocationX="50" LocationY="60" Name="Martin" />
      </Msg>
  </Game>
</Data_file>

What I want achive is select all the events where Msg_type=2, then put the LocationX , LocationY, Name to an array with selected events.
For now , I use xpath with expression "//Msg/Event[@Msg_type=2]/@ LocationX", the result supposed to be :

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10
0
50

but what I got is:

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10

How can I get all the events which match the condition? And can I put thems in an string array?
Thanks for you suggestion!