title: Select all files with file picker metro apps windows 8
body: <pre><code>FileOpenPicker openPicker = new FileOpenPicker();
  openPicker.ViewMode = PickerViewMode.Thumbnail;
  openPicker.SuggestedStartLocation = PickerLocationId.PicturesLibrary;
  openPicker.FileTypeFilter.Add(".jpg");
  openPicker.FileTypeFilter.Add(".jpeg");
  openPicker.FileTypeFilter.Add(".png");
  
  StorageFile file = await openPicker.PickSingleFileAsync();
  if (file != null)
  {
      // Application now has read/write access to the picked file
      OutputTextBlock.Text = "Picked photo: " + file.Name;
  }
  else
  {
      OutputTextBlock.Text = "Operation cancelled.";
  }
  </code></pre>
  
  <p><br>
  <strong>How do I add</strong> <code>openPicker.FileTypeFilter.Add(".*");</code> <strong>means show all file types in file picker?</strong></p>