FilterValues
Purpose 
Returns a text result containing only the values that were provided in filterValues, in the order they were originally entered in textToFilter.
Format 
FilterValues(textToFilter; filterValues)
Parameters 
textToFilter - any text expression or text field
filterValues - values that you want to preserve in the specified text
Important  See Design functions for information about literal text parameters.
Data type returned 
text
Originated in 
FileMaker Pro 7.0
Description 
If filterValues doesn’t have any values, an empty string is returned.
Values are text items separated by carriage returns. A value can be empty, a single character, a word, a sentence, or a paragraph. When you press Enter or Return, you start creating a new value. The last value will be recognized with or without a carriage return.
When the textToFilter or the filterValues parameter is a literal string, you must insert a paragraph character (¶) between each item in the string. To insert a carriage return character, click the button in the Specify Calculation dialog box.
The FilterValues function is not case-sensitive.
Examples 
FilterValues(“Plaid¶Canvas¶Suitcase”;“Plaid¶Canvas”) returns
Plaid
Canvas
FilterValues(ValueListItems(“Database”;“Sizes”);“Medium¶Small”) returns
Small
Medium
when a database file named Database has a value list Sizes that contains Small¶Medium¶Large.
Related topics 
Functions reference (category list)
Functions reference (alphabetical list)
About formulas
About functions
Defining calculation fields
Using operators in formulas