importing .ics file using asp.net

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ASP.NET

Hi..

i want to import calendar events to my database. for that i exported .ics files from google calendar, Hotmail calendar,yahoo calendar and so on. but these files are not in same format to import events is there any combined code for all these calendars.This is the code which i used

FileStream fs = new FileStream(@"C:\HotMailCalendar.ics", FileMode.Open, FileAccess.Read);
  StreamReader sr = new StreamReader(fs);
            string ical = sr.ReadToEnd();
            char[] delim = { '\n' };
            string[] lines = ical.Split(delim);
            delim[0] = ':';
            for (int i = 0; i < lines.Length; i++)
            {
                if (lines[i].Contains("BEGIN:VEVENT"))
                {
                    string[] eventData = new string[9];
                    for (int j = 0; j < 9; j++)
                        eventData[j] = lines[i + j + 1].Split(delim)[1];
                    string strDate = eventData[0].ToString();
                    strDate = strDate.Replace("\r", "");

                    string format;
                    DateTime result;
                    CultureInfo provider = CultureInfo.InvariantCulture;
                   format = "yyyyMMddThhmmssssZ";
                  result = DateTime.ParseExact(strDate, format, provider);
                 i += 10;
              }
          }
          sr.Close();

thanks in advance...