how to validate date fields in ssis 2008

Hi,

i have import data from flat file. my source is flat file. i have date file dob column this data like this 21/06/1988 flat file take string column but am converted to date column using data conversion.

i want how to validate the date field.. how to find incorrect format.. my format is dd/mm/yyyy.

any incorrect format comes data is not imported...

Regards,

Abdul Khadir.