How to check the data type dynamically
my requirement is like this in one screen field which is of character type user is inputing data .
now while saving to the database i have to apply one external check for this data if it is integer type or not
as this data on the screen is refrenced to the database so i can not change the data type on the screen itself .
i have to check it externally from PAI ....... would any one please help on this
Thanks and regards