Sometimes we need to compare two dates as start date and end date where we need that end date must be greater than start date . If we use date format in mm/dd/yyyy then compare validator works well but if we use date picker using jquery or the date in dd/mm/yyyy format by any other way then compare validator does not work because it recognizes only dd/mm/yyyy format. To over come this problem a custom date compare validator should be used. Following is a simple application where a custom compare validator has been used .