Suppose we have the below XML file

<?xml version="1.0" encoding="UTF-8"?>
<Countries>
	<India>
		<Player isPlaying="1">
		  <Name>Z. Tendulkar</Name>
		  <Age>23</Age> 
		</Player>
		<Player isPlaying="0">
		  <Name>S. Khan</Name>
		  <Age>30</Age> 
		</Player>
	</India>
	<Australia>
		<Player isPlaying="1">
		  <Name>B. Warne</Name>
		  <Age>40</Age>  
		</Player>
		<Player isPlaying="1">
		  <Name>P. Gooch</Name>
		  <Age>30</Age> 
		</Player>
	</Australia>
</Countries>

We need to display the player information for those players who will play for the game (i.e. isPlaying attribute of Player entity should be 1) for a particular country.

Here is my solution for the same

string countryName = "India"; 
string inputXml = @"<?xml version="1.0" encoding="UTF-8"?>
<Countries>
	<India>
		<Player isPlaying="1">
		  <Name>Z. Tendulkar</Name>
		  <Age>23</Age> 
		</Player>
		<Player isPlaying="0">
		  <Name>S. Khan</Name>
		  <Age>30</Age> 
		</Player>
	</India>
	<Australia>
		<Player isPlaying="1">
		  <Name>B. Warne</Name>
		  <Age>40</Age>  
		</Player>
		<Player isPlaying="1">
		  <Name>P. Gooch</Name>
		  <Age>30</Age> 
		</Player>
	</Australia>
</Countries>";
XDocument xmlSkuDescDoc = null;
xmlSkuDescDoc = XDocument.Parse(inputXml); // use XDocument.Load(filename) if loading from file
(from data in xmlSkuDescDoc.Descendants(countryName)
 select data)
 .Descendants("Player")
 .Where(el => el.Attribute("isPlaying").Value == "1")
 .Elements()
 .ToList()
 .ForEach(i => Console.WriteLine("{0} {1}",i.Name.ToString(),i.Value));

Output

Name Z. Tendulkar
Age 23

N.B.~ Please add the namespace System.Xml.Linq

Hope this will be helpful.