foreach (DataRow r in ds.Tables[0].Rows)
 {
       string date1= r["First_Resurvey_Date"].ToString(); //works fine
       string date2= r["Last_Resurvey_Date"].ToString(); //works fine
       resultsLabel.Text = date1+"   "+date2;                 //works fine 

      //string dateString = r["First_Resurvey_Date"].ToString(); // Modified from MSDN [This doesn't work as sais invalid date]
        string format = "dd-MMM-yy";
        DateTime dateTime = DateTime.ParseExact("3/14/1985 12:00:00 AM", format, CultureInfo.InvariantCulture); [So, I have tried putting the data displayed as a string, but this doesn't work either]
 
         string date3= dateTime.ToString();
         NotesLabel.Text= date3;
         NotesLabel.Visible=true;

       //DateTime dt = Convert.ToDateTime(r["First_Resurvey_Date"]);
       //string format = "dd/MM/yy";
       //String date;
       //date = dt.ToString(format,DateTimeFormatInfo.InvariantInfo);

}