How to check subnode is present if get the value in linq to xml?

hi all,

This is my xml response.

<ns1:PricedItineraries>
<ns1:PricedItinerary>
<ns1:AirItinerary>
<ns1:OriginDestinationOptions>
<ns1:OriginDestinationOption>
<ns1:FlightSegment ArrivalDateTime="2012-10-07T11:40:00" DepartureDateTime="2012-10-07T10:50:00">
<ns1:BookingClassAvail FareType="RP">
<ns1:FlightSegment ArrivalDateTime="2012-10-07T11:40:00" DepartureDateTime="2012-10-07T10:50:00">
<ns1:BookingClassAvail FareType="RP">
<ns1:OriginDestinationOption>
<ns1:OriginDestinationOptions>
<ns1:AirItinerary>
<ns1:PricedItinerary>
<ns1:PricedItinerary>
<ns1:AirItinerary>
<ns1:OriginDestinationOptions>
<ns1:OriginDestinationOption>
<ns1:FlightSegment ArrivalDateTime="2012-10-08T11:40:00" DepartureDateTime="2012-10-07T10:50:00">
<ns1:BookingClassAvail FareType="RRP">
<ns1:FlightSegment ArrivalDateTime="2012-10-08T11:40:00" DepartureDateTime="2012-10-07T10:50:00">
<ns1:BookingClassAvail FareType="RRP">
<ns1:OriginDestinationOption>
<ns1:OriginDestinationOptions>
<ns1:AirItinerary>
<ns1:PricedItinerary>
<ns1:PricedItineraries>

Here i need to Get the Flightsegement value seperately. Under one pricedItinerary there may be more than one Flightsegment will be there. I have to get the Arrivaldate and Departure date of each Flightsegment separately.

These things should come under First PricedItinerary. There Will be more PricedItinerary there,
Desire Output:

PricedItinerary[0];FlightSegement[0]{ArrivalDate,DepartureDate}         FlightSegement[1]{ArrivalDate,DepartureDate}

PricedItinerary[1];FlightSegement[0]{ArrivalDate,DepartureDate}

PricedItinerary[2];FlightSegement[0]{ArrivalDate,DepartureDate}
FlightSegement[1]{ArrivalDate,DepartureDate}

The list goes on.,
Here,

Tags: C#, XML, LINQ