conversion of local variable

Respected member

when i use this Console.Writeline(data=="#3 P1500 \r");

i am getting false so how i convert data into that form

 initally i am getting data value serially from one hardware using this code and storing it in a text file:

#region  Namespace Inclusions using  System; using  System.IO.Ports; using  System.Windows.Forms; #endregion  namespace  SerialPortExample {  class SerialPortProgram {  // Create the serial port with basic settings private SerialPort port = new SerialPort("COM4", 9600, Parity.None, 8, StopBits.One); [  STAThread] static void Main(string[] args) {  // Instatiate this class new SerialPortProgram(); }  private SerialPortProgram() {  Console.WriteLine("Incoming Data:"); // Attach a method to be called when there // is data waiting in the port's buffer port.DataReceived +=  new SerialDataReceivedEventHandler(port_DataReceived); // Begin communications port.Open();  // Enter an application loop to keep this thread alive Application.Run(); }  private void port_DataReceived(object sender, SerialDataReceivedEventArgs e) {  // Show all the incoming data in the port's buffer string data = port.ReadExisting(); Console.WriteLine(data);  System.IO.File.WriteAllText("C://Users//intel//Documents//Visual Studio 2010//Projects//ConsoleApplication2//serialdata.txt", data); port.Close();  }  }  }

using  System; using  System.Collections.Generic; using  System.Linq; using  System.Text; using  System.IO.Ports; using  System.Threading; namespace  cConsoleAppMonitorServoCompletion {  class Program {  static SerialPort _serialPort; static void Main(string[] args) {   _serialPort =  new SerialPort("COM1",115200,Parity.None,8,StopBits.One);  _serialPort.Open();  string data = System.IO.File.ReadAllText("C://Users//intel//Documents//Visual Studio 2010//Projects//ConsoleApplication2//serialdata.txt"); Console.WriteLine(data); data.ToString();  Thread.Sleep(200); _serialPort.Write(data);   Thread.Sleep(10); _serialPort.Close();  }  }  }

now this is not working but if i write 

_serialPort.Write("#3 P1200 \r");

my hardware is working i dont know what is the problem even though my data is this #3 P1200 \r