CODEWITHSUNDEEP
c#.netwindows-store-apps
Krekkon
Krekkon

Reputation: 1347

Where should I delete my file with Share Contract in windows store app

In my app, I send an email with Windows Store Share Contract. Everything works fine, only one problem what I cant solve. Where and how can I delete the created file? Because if I delete it anywhere, the email goes without attachment. There is my code:

async void ShareImageHandler(DataTransferManager sende, DataRequestedEventArgs e)
    {
        DataRequest request = e.Request;

        DataRequestDeferral deferral = request.GetDeferral();

        var localFolder = ApplicationData.Current.LocalFolder;
        var file = await localFolder.CreateFileAsync(Guid.NewGuid(); + ".png");
        var screenShotter = new ScreenShotter();

        try
        {
            await screenShotter.SaveVisualElementToFileAsync(
                      gridPrintForPostCard, file, new Rect(0, 0, 10000, 10000));

            request.Data.Properties.Thumbnail =
                               RandomAccessStreamReference.CreateFromFile(file);
            request.Data.SetBitmap( 
                               RandomAccessStreamReference.CreateFromFile(file));
        }
        finally
        {
            deferral.Complete();
        }
    }

Upvotes: 1

Views: 73

Answers (1)

i3arnon
i3arnon

Reputation: 116636

You can add a background task that runs even when the app isn't running that periodically clears away the temporary files. You can even have conditions on when it can run, like if the user is away from the computer for example. More Info: Guidelines for background tasks

A more simple solution would be to simply delete all of them when you app starts (loaded event) or shuts down. But it's a less robust solution.

Upvotes: 2

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