U.M. (Mac OS)

2-8 FileMaker Pro User’s Guide
Check that the value matches the
result of a calculation
Select Validation by calculation, click
Specify, and then define a formula.
The result must be Boolean—“true”
or “false,” “yes” or “no,” and so on.
(See “Understanding formulas” on
page 2-13.) The result is false when
the result is 0 or null (empty);
otherwise the result is true.
Prevent users from entering invalid
data
Select Strict: Do not allow user to
override validation.
Display a message you specify when
the data doesn’t meet the validation
requirements
Select Display custom message if
validation fails, and then type a
message (up to 255 characters).
For To Do this
Set entry options for entering
default data in the field
Choose Auto Enter to
have default data
entered in the field
Set validation options
for the current field
Choose Validation to set
validation options for the
current field