private void ReaderFile() 
{ 
         string delimiter = "|"; 
         string fileName = @"c:\Readuser.csv"; 

         StreamReader sr = new StreamReader(fileName); 

         try 
         { 
                  while (sr.Peek() >= 0) 
                  { 
                  string rl = sr.ReadLine(); 
                  string[] items = rl.Split(delimiter.ToCharArray()); 
                  } 
         } 
         finally 
         { 
         sr.Close(); 
         } 
}