using System;
using System.IO;
using System.Linq;
using Windows.Storage;

public static class Storage
{

    public static async void SaveData()
    {
        string myString = "This is the data I want to save";
        ApplicationDataContainer localSettings = ApplicationData.Current.LocalSettings;

        // Add:  using Windows.Storage;
        Windows.Storage.StorageFolder localFolder = Windows.Storage.ApplicationData.Current.TemporaryFolder;

        // Optionally overwrite any existing file with CreationCollisionOption
        StorageFile file = await localFolder.CreateFileAsync("mySaveFile.txt", CreationCollisionOption.ReplaceExisting);

        try
        {
            if (file != null)
            {
                await FileIO.WriteTextAsync(file, myString);
            }
        }
        catch (FileNotFoundException)
        {
            // Error saving data
        }
    }


}