How to write xml string

See more:

C#

ASP

.NET

Please help me in solving the error. My Problem is I actually getting xml String from Web service,
I am storing that string into XML File and reading the file using xml.reader();

But will getting the string from web service if there is empty xml node the node is geting in single tag Ex:

<Data_Classification />

instead of

<Data_Classification></Data_Classification>

Following is the code I am writing to store xml string to xml file.

Code:

private static void  printMessage(string strBody)
{			 
    sring strPath =Convert.ToString(System.Configuration.ConfigurationSettings.AppSettings["PrintMsgPath"]); 
    if(!Directory.Exists(strPath))
    {
        Directory.CreateDirectory(strPath);
    }
    if (!File.Exists(strPath+"\\APMIRIS.xml")) 
    {
        using (StreamWriter sw = File.CreateText(strPath+"\\APMIRIS.xml")) 
        {				
            sw.WriteLine(strBody);				
        }	
    }
    else
    {
        File.Delete(strPath+"\\APMIRIS.xml");		
//      using (StreamWriter sw1 = File.Delete(strPath+"\\APMIRIS.xml")) 
//      {
        using (StreamWriter sw2 = File.CreateText(strPath+"\\APMIRIS.xml")) 
        {	
            sw2.WriteLine(strBody);					
        }					
    }
}

Please let me know the where I am going wrong?