/// <summary> /// It checks if the specified folder exists. /// </summary> /// <param name="storageFolder">The container folder</param> /// <param name="subFolderName">The sub folder name</param> /// <returns></returns> private static async Task<bool> IfFolderExistsAsync(StorageFolder storageFolder, string subFolderName) { try { IStorageItem item = await storageFolder.GetItemAsync(subFolderName); return (item != null); } catch { // Should never get here return false; } }
public static async Task <T> DeserializeAsync <T>(Windows.Storage.StorageFolder folder, string fileName, System.Threading.SemaphoreSlim semaphore) where T : class { try { return(await DeserializeAsync <T>((await folder.GetItemAsync(fileName)) as Windows.Storage.StorageFile, semaphore)); } catch { return(null); } }
private async Task avatarpaint() { if ((string)localSettings.Containers[username.Text].Values["avatar"] != "null") //判断是否有头像,有则填充头像图像 { imgpath = localSettings.Containers[username.Text].Values["avatar"].ToString(); ImageBrush brush = new ImageBrush(); BitmapImage bitmap = new BitmapImage(); Windows.Storage.StorageFolder storageFolder = Windows.Storage.ApplicationData.Current.LocalFolder; Windows.Storage.StorageFile sf = (StorageFile)await storageFolder.GetItemAsync(imgpath); using (var stream = await sf.OpenAsync(FileAccessMode.ReadWrite)) { bitmap.SetSource(stream); } brush.ImageSource = bitmap; Avator.Fill = brush; } }
private void deleteFile(StorageFolder store, string f) //or Folder { try { if (f.Length == 0 || (f.Length == 1 && f[0] == '\\')) return; //root folder var item = store.GetItemAsync(f).AsTask().ConfigureAwait(false).GetAwaiter().GetResult(); item.DeleteAsync().AsTask().ConfigureAwait(false).GetAwaiter().GetResult(); } catch (System.Exception err) { //ignore file deletion errors err.ToJavaException().printStackTrace(); } }