How to Load Images from a Stream

Due to obvious security reasons Silverlight cannot directly load files from a client box. However, in response to an event like a button Silverlight can load files through the OpenFileDialog where the client gets to choose what file to load.

The following sample shows you how to load a PNG file once a use clicks on a button. In the code below, “MyImage” is an Image control that I declared in my XAML. BitmapImage can be found in System.Windows.Media.Imaging.

private void Button_Click_Load_Image(object sender, RoutedEventArgs e)

{

    OpenFileDialog ofd = new OpenFileDialog();

    ofd.Filter = "PNG Files (*.png;*.png)|*.png;*.png | All Files (*.*)|*.*";

    ofd.FilterIndex = 1;

    if (true == ofd.ShowDialog())

    {

        System.IO.Stream stream = ofd.File.OpenRead();

        BitmapImage bi = new BitmapImage();

        bi.SetSource(stream);

        MyImage.Source = bi;

        stream.Close();

    }

}