How to skip reading some part of a file which is between soe identifiers...?????

Hi,

My file contains following things...

//Start

blah.. blah.. blah

#AutoSar_Start
Message $591 NM_AUTOSAR NM_AUTOSAR IPC 8 1000

Signal NM_AUTOSAR_signal NM_AUTOSAR_signal 8 0 7 HEX $0 $0 $0 $0

Message $58C ACU_Autosar ACM_AutoSar_Network_Mgmt IAM 8 0

Signal AutoSar ACM_AutoSar_Network_Mgmt 64 0 63 HEX $0 $0 $FFFF $0

#AutoSar_End

blah.. blah.. blah

// End

The code should be

            string line;
            bool flag = false;
            StreamReader sr = new StreamReader(@"C:\Users\sude\Documents\username.txt");
            while ((line = sr.ReadLine())!=null)
            {
                if ((!flag)&&(line.Equals("#AutoSar_Start")))
                {
                    flag = true;
                }
                else if (line.Equals("#AutoSar_End"))
                {
                    flag = false;
                }
                else if (flag)
                {
                    //do nothing
                }
                else
                {
                    Console.WriteLine(line);
                }

I  test it but I want you to test the code and feel free to post to me how could I make the code more cleaner.....

Please revert back if you have any issues.....