How can I create a file extension filter?

This appears to work:

private IDataFilter _folderExplorerDataFilter = new PredicateFilter(i => 
{
    var shellObjectVM = (ShellObjectViewModel)i;
    var supportedFileTypes = new[] { ".sq", ".txt" };
    return (shellObjectVM.IsFolder) ? true : supportedFileTypes.Any(shellObjectVM.Name.EndsWith); 
});

Hi JP,

Yes predicate filters would work fine for that kind of thing.

Alright, thank you!