Solution
You can use the
Advanced Search in DIAdem Navigator to display the
Text Display (DataFinder) dialog box by clicking the "..." button. This dialog box allows you to filter queried property values; in the case of string type properties, it returns all possible values for a given property.
If you intend to use this functionality in a custom property, you will first need to
optimize it for DataFinder.
If you intend to automate this process using a script, you can use the
GetValueList for IndexedProperty method to retrieve the unique values from a basic or a custom property (previously optimized for DataFinder).