List ALL folders and files on my dropbox account

abelmor Exactly how you use the API will on exactly what you're looking to do, so please refer to the information earlier in this thread to see how to configure these calls.

For example, here's a very basic sample of how you can call these methods to print out the entries for everything directly in the root folder for the call:

void HandleEntries(IList<Dropbox.Api.Files.Metadata> entries)
{
    foreach (var entry in entries)
    {
        Console.WriteLine(entry);
    }
}

var result = await client.Files.ListFolderAsync(path:string.Empty);
HandleEntries(result.Entries);
while (result.HasMore) {
    result = await client.Files.ListFolderContinueAsync(result.Cursor);
    HandleEntries(result.Entries);
}