How to get child node info from xml file

Question

Hi,

 

I need some guidence to get some data out from an XML file using the query function in  LINQ to XML 

 

Here is my XML file structure

<data>

<ICAO id="CFS4">

<ICAOName>Ogilvie River</ICAOName>

<Country>Canada</Country>

<State>Yukon Territory</State>

<City>Ogilvie River</City>

<State>Alabama</State>

<Runway id="02">

<Hdg>12.000</Hdg>

<Lat>65.664040</Lat>

<Lon>-138.122025</Lon>

<FSStartLat>65.664124</FSStartLat>

<FSStartLon>-138.121826</FSStartLon>

</Runway>

<Runway id="20">

<Hdg>192.000</Hdg>

<Lat>65.669289</Lat>

<Lon>-138.111313</Lon>

<FSStartLat>65.669205</FSStartLat>

<FSStartLon>-138.111496</FSStartLon>

</Runway>

</ICAO>

</data>

 

There are thousand and thousands of ICAO nodes.

There are either a Runway node or none in a ICAO node.

There are from 2 to several Runway ids in a Runway node 

 

 I need to get a list of all Runway ids with its Hdg, Lat, Lon,FSStartLat and FSStartLon values for a specific ICAO id

 

I know how to open and query in general, but to get what I want I have so far not managed

 

How can this be done in the most effective way?