compare two date time in dd/mm/yyyy formate

using System.Globalization;

DateTimeFormatInfo dateFormat = new DateTimeFormatInfo();
dateFormat.DateSeparator = "/";

string input1 = "18/10/2012";
string input2 = "17/10/2012";

DateTime date1 = DateTime.MinValue;
DateTime date2 = DateTime.MinValue;

if (DateTime.TryParseExact(input1, "dd/MM/yyyy", dateFormat, DateTimeStyles.AllowWhiteSpaces, out date1))
{
    // Date 1 is a valid date
}
else
{
    throw new Exception("Input 1 is not a valid recognised date");
}

if (DateTime.TryParseExact(input2, "dd/MM/yyyy", dateFormat, DateTimeStyles.AllowWhiteSpaces, out date2))
{
    // Date 2 is a valid date
}
else
{
    throw new Exception("Input 2 is not a valid recognised date");
}

if (date1 > date2)
{
    // Do something
}
else
{
    // Do something
}

        string strFromDate = "26/03/2012";
        string strToDate = "26/04/2012";
 
        DateTime FromDate = DateTime.ParseExact(strFromDate, "dd/MM/yyyy",null);
        DateTime ToDate = DateTime.ParseExact(strToDate, "dd/MM/yyyy", null);
 
        int result = DateTime.Compare(FromDate, ToDate);
 
        if (result < 0)
        {
            //from date is less than to date
            
        }