User manual

Chapter 2
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Creating databases 51
3. If your file contains more than one table, select the appropriate
table from the
Table list.
4. Double-click a field in the fields list.
5. In the Options for Field dialog box, click the Validation tab.
6. Specify how FileMaker Pro handles an invalid entry.
For Validation options for this field, select Always for ongoing field
validation, or
Only during data entry to limit validation to instances
when data is being entered. Deselect
Allow user to override during data
entry
if you want to prevent users from entering invalid data.
7. Select validation options for the field.
8. To display a custom message when the data doesn’t meet the
validation requirements, select
Display custom message if validation
fails
, then type up to 255 characters.
9. Click OK to close the Options for Field dialog box, or click another
tab to set additional field options.
For more information, see Help.
To require that
the entered value Select
Contains only numbers Strict data type, then choose Numeric
Only from the list
Is a date containing numeric values for
the month and day, and four digits for
the year (for example,
5/12/2004)
Strict data type, then choose
4-Digit Year Date from the list
Is a time containing numeric values for
hours and minutes between 00:00 and
23:59 (seconds are optional)
Strict data type, then choose Time of Day
from the list
Is not blank Not empty
Does not duplicate a value found in this
field in other records
Unique value
Matches another value in the same field
in any other record
Existing value
Matches a value in a specified value list Member of value list, then choose an
existing value list or define a new one
Is within a specific range of letters,
numbers, dates, or times
In range, then type the beginning and
ending values
Matches the result of a calculation Validated by calculation, then enter a
calculation in the Specify Calculation
dialog box. Select or clear Validate only
if field has been modified. Then click OK.
The result must be Boolean—true or
false. The result is true when the result
is any number except zero; any other
result (zero, no data, or non-numeric
data) is false.
For more information about the Specify
Calculation dialog box, see “Defining
calculation fields” on page 46.
Does not exceed the specified number
of characters
Maximum number of characters, then
type the maximum number of
characters allowed
To require that
the entered value Select
Select validation
options for the field
Click Validation