public static async Task OpenResourceFolder(Coocoo3DMain appBody) { FolderPicker folderPicker = new FolderPicker() { FileTypeFilter = { "*" }, SuggestedStartLocation = PickerLocationId.ComputerFolder, ViewMode = PickerViewMode.Thumbnail, SettingsIdentifier = "ResourceFolder", }; StorageFolder folder = await folderPicker.PickSingleFolderAsync(); if (folder == null) { return; } appBody.OpenedStorageFolderChange(folder); }