/// <summary>
/// Launch the FileOpenPicker and get the name of a PDF document to load. This is
/// an async method because it awaits an async method, but it doesn't return a
/// Task so it can match the click handler signature.
/// </summary>
private async void LoadDocument()
{
LoadButton.IsEnabled = false;
var picker = new FileOpenPicker();
picker.FileTypeFilter.Add(".pdf");
StorageFile file = await picker.PickSingleFileAsync();
// if the FileOpenPicker gave us a filename, create a NavigationContext object
// and set its parameters to pass to the LoadPdf page.
if (null != file)
{
var nav = new NavigationContext();
nav.IsFile = true;
nav.PdfFile = file;
nav.BackgroundColor = GetPdfBackgroundColor();
// update the displayed loaded PDF name
SourceDisplayName = file.Name;
// navigate to the LoadPdf page
PdfFrame.Navigate(typeof(Views.LoadPdf), nav);
}
LoadButton.IsEnabled = true;
}
/// <summary>
/// This loads a PDF file from an Internet URI.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void LoadFromUri_Click(object sender, RoutedEventArgs e)
{
var uri = new Uri("http://www.adobe.com/content/dam/Adobe/en/accessibility/products/acrobat/pdfs/acrobat-x-accessible-pdf-from-word.pdf");
var nav = new NavigationContext();
nav.IsFile = false;
nav.PdfUri = uri;
nav.BackgroundColor = GetPdfBackgroundColor();
// update the displayed loaded PDF name
SourceDisplayName = uri.ToString();
// navigate to the LoadPdf page
PdfFrame.Navigate(typeof(Views.LoadPdf), nav);
}
/// <summary>
/// This loads an embedded PDF file from the Assets directory. Remember, any PDF file
/// you want to load from Assets has to have its Build Action set to Content in Properties.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void LoadFromAssets_Click(object sender, RoutedEventArgs e)
{
var uri = new Uri("ms-appx:///Assets/semanticzoom.pdf");
var nav = new NavigationContext();
nav.IsFile = false;
nav.PdfUri = uri;
nav.BackgroundColor = GetPdfBackgroundColor();
// update the displayed loaded PDF name
SourceDisplayName = uri.ToString();
// navigate to the LoadPdf page
PdfFrame.Navigate(typeof(Views.LoadPdf), nav);
}
