嘗試在InstalledLocation StorageFolder中創建CreateFileAsync時拒絕訪問？

Question

嘗試在InstalledLocation StorageFolder中創建CreateFileAsync時訪問被拒絕

StorageFolder storageFolder = Windows.ApplicationModel.Package.Current.InstalledLocation;
StorageFile file = await storageFolder.CreateFileAsync("fileNmae", Windows.Storage.CreationCollisionOption.ReplaceExisting);

我也嘗試過

var storageFolder = await StorageFolder.GetFolderFromPathAsync("ms-appx:///");

並得到“值不在預期范圍內”

我可以四處走走，然后在Windows.Storage.ApplicationData.Current.LocalFolder CreateFileAsync ，然后將CopyAsync到InstalledLocation StorageFolder？

StorageFolder storageFolder = Windows.Storage.ApplicationData.Current.LocalFolder;
StorageFile file = await storageFolder.CreateFileAsync("fileName", Windows.Storage.CreationCollisionOption.ReplaceExisting);

StorageFolder installedLocationFolder = Windows.ApplicationModel.Package.Current.InstalledLocation;
var result = await file.CopyAsync(installedLocationFolder, "fileName", Windows.Storage.NameCollisionOption.ReplaceExisting);

但是InstalledLocation StorageFolder中的CreateFileAsync會拒絕訪問？ 是出於安全原因還是我在此處編碼錯誤？

Answer 1

該應用程序的安裝目錄是只讀位置。 此外，不建議您將數據文件寫入安裝位置。 如果您需要存儲數據僅供應用程序使用，則應使用

StorageFolder localFolder = ApplicationData.Current.LocalFolder;

要么

Windows.Storage.StorageFolder temporaryFolder = ApplicationData.Current.TemporaryFolder;

取決於數據的生存期。