比如說這樣?
BitmapImage bmpImage = new BitmapImage(new Uri("http://dantonybrown.com/brownsoft/SweepyCleaner.png"));
MessageBox.Show(bmpImage.PixelWidth.ToString());
這很有道理。圖像按需加載,並在背景上加載。你有多種選擇這裏:
分配的BitmapImage到圖像控制。在ImageLoaded發生的事件後,您可以訪問屬性:
BitmapImage bmpImage = new BitmapImage(new Uri("http://dantonybrown.com/brownsoft/SweepyCleaner.png"));
bmpImage.ImageOpened += (sender, args) => Dispatcher.BeginInvoke(() => MessageBox.Show(
bmpImage.PixelWidth.ToString(CultureInfo.InvariantCulture)));
imageCtrl.Source = bmpImage;
裝入的BitmapImage與CreateOptions.None。這將仍然加載圖像中的背景,但你不必像分配到控制它開始加載之前:
BitmapImage bmpImage = new BitmapImage(new Uri("http://dantonybrown.com/brownsoft/SweepyCleaner.png"))
{CreateOptions = BitmapCreateOptions.None};
bmpImage.ImageOpened += (sender, args) => Dispatcher.BeginInvoke(() => MessageBox.Show(
bmpImage.PixelWidth.ToString(CultureInfo.InvariantCulture)));