Developer’s Guide

16 FileMaker Developer’s Guide
You can also type parameter names, operators, and functions in the
Edit Custom Functions dialog box instead of using the lists or
keypad.
8. All accounts is the default option for Availability and allows all
users of the current database to see and use the custom function.
9. If you want the custom function to be available only to those with
full access privileges, select Only accounts assigned full access
privileges
.
10. Click OK.
Editing custom functions
The changes you make to a custom function are applied to that
function wherever it is used.
To edit a custom function:
1. Choose File menu > Define > Custom Functions.
2. In the list of custom functions, select the function to be edited
then click Edit.
3. In the Edit Custom Functions dialog box, make the needed
changes, then click OK.
To change the way functions are sorted in the Define Custom
Functions dialog box, choose a category from the
View list.
1. In the Edit Custom Function dialog box, make the required
changes.
2. Click OK.
3. Continue working with custom functions or click OK to close the
Define Custom Functions dialog box.
Deleting custom functions
When you delete a custom function, it is no longer available for use.
If you have full access privileges to a database and are editing a
calculation that uses a custom function that has been deleted, the
name of the function is replaced with the string <Function Missing>.
To delete a custom function:
1. Choose File menu > Define > Custom Functions.
2. In the list of custom functions, select the function to be deleted
and click Delete.
3. Continue working with custom functions or click OK.
Duplicating custom functions
You can make a copy of a custom function and then edit the copy to
perform a similar operation.
To duplicate a custom function:
1. Choose File menu > Define > Custom Functions.
2. In the list of custom functions, select the function to be duplicated
and click Duplicate.
The copy of the function appears in the list of custom function with
“Copy” appended to its name.
3. Continue working with custom functions or click OK.
Constant value Type the value.
Function In the functions list, double-click a function. In the
formula box, replace the example parameter with a value
or expression.
To add a Do this