In UWP, can I check if a StorageFolder is a parent of another StorageFolder?

I have an app that recursively manage files and folders in a StorageFolder picked by users (using FolderPicker). Now users may add multiple folders into the managing list. However right now my app does not know if user may pick a parent folder of another picked one which would cause duplicate files. For example they can pick D:\test\subfolder and then pick D:\test (or vice versa).

My question is, giving two StorageFolder instances, can I request an operation that detects if an instance is a subfolder of the other? I cannot see any obvious method in the API documentation page.

After typing the question, I thought of a workaround that is listing the contents of each folder and see if any child matches the other. I am not even sure if I can do this and if possible I would prefer not doing this because a folder content maybe very large (possibly the entire partition)

I think you will be able to use StorageFolder.Path, to get the path of the two instances and then based on that you can determine if they are sub-routed, example:

var file1 = @"D:\test\";
var file2 = @"D:\test\subfolder";


if(file1.StartsWith(file2) || file2.StartsWith(file1)){
    Console.WriteLine("Folders are subrouted");    
}