Read Full Name From Active Directory

  

using System.DirectoryServices; 

public static string GetFullName(string strLogin) 
{
 string str = ""; 
 string strDomain; 
 string strName; 
 // Parse the string to check if domain name is present. 
 int idx = strLogin.IndexOf('\\'); 
 if (idx == -1) 
 {
  idx = strLogin.IndexOf('@'); 
 }
 if (idx != -1) 
 {
  strDomain = strLogin.Substring(0, idx);
  strName = strLogin.Substring(idx + 1);
 }
 else 
 {
  strDomain = Environment.MachineName; 
  strName = strLogin;
 }
 DirectoryEntry obDirEntry = null; 
 try 
 {
  obDirEntry = new DirectoryEntry("WinNT://" + strDomain + "/" + strName); 
  System.DirectoryServices.PropertyCollection coll = obDirEntry.Properties; 
  object obVal = coll["FullName"].Value; 
  str = obVal.ToString();
 }
 catch (Exception ex) 
 {
  str = ex.Message;
 }
 return str; 
}