FolderItemDialog.Filter
From Xojo Documentation
Property (As String )
aFolderItemDialog.Filter = newStringValue
or
StringValue = aFolderItemDialog.Filter
Supported for all project types and targets.
or
StringValue = aFolderItemDialog.Filter
Supported for all project types and targets.
One or more File Types, separated by semicolons, previously defined via the FileType class or in the File Type Sets Editor in the IDE.
Notes
Filter controls which files within InitialDirectory are visible.
Example
This example illustrates all the labelling properties of a FolderItemDialog.