Write
private async void WriteTestToFile(string filename, string text) { StorageFolder folder = Windows.Storage.ApplicationData.Current.LocalFolder; StorageFile file = folder.CreateFileAsync(filename, CreationColissionOption.ReplaceExisting); await FileIO.WriteTextAsync(file, text); }
Read
private async Task<string> ReadTestToFile(string filename, string text) { StorageFolder folder = Windows.Storage.ApplicationData.Current.LocalFolder; StorageFile file = folder.GetFileAsync(filename); string result = await FileIO.ReadTextAsync(file); return result; }
Exist
Use „Read a File“ and handle the Exception if the File does not exists.