protected virtual void OnMouseDownImage(MouseDownImageEventArgs e)
{
if (MouseDownImage != null)
{
MouseDownImage(this, e);
}
}
void photonav_MouseDownImage(object sender, MouseDownImageEventArgs e)
{
BigImage.Source = e.photoinfo.ImageSource;
BigCanvas.MaxHeight = this.ActualHeight - 30;
BigCanvas.Height = BigCanvas.MaxHeight;
BigCanvas.Visibility = Visibility.Visible;
BigImage.Visibility = Visibility.Visible;
}