C# 当我按下GoBack时，内存不会下降

当我在中调用函数Dispose（）时

但它仍然使用3到5 MB。调用GoBack事件时如何恢复原始内存

---

请帮助我，我希望在返回页面或处理对象时释放内存。

垃圾收集器仅在需要运行时运行，因此它不一定在您运行Dispose时立即运行

可以通过调用GC.collect（）强制GC进行收集；但这可能会对你的应用程序性能产生影响。这是因为当GC运行时，它会停止应用程序中所有正在执行的线程，并检查堆中的每个对象，以查看它是否仍然被引用或正在使用。虽然垃圾收集器速度很快，但重复调用GC会带来开销

---

正如其他评论人士所说，最好让GC自己管理。

此代码不会用GC清除所有对象，因为您仍然持有大量引用。但是正常情况下这应该没有问题-GC会很好地完成它的工作-我可以问你为什么需要这样做吗？@thong调用

GC

不会强制它开始directly@Carsten科尼格！谢谢回答问题，我想在返回页面时回复内存，但内存减少很少。如何管理内存，我释放对象引用，数组。。。。但是仍然没有解决？乍一看，你在那里做的唯一对垃圾收集有帮助的事情就是取消订阅Click事件。您可以删除所有其余的。

 private void Dispose()
    {


        ImageBrush brushRoot = LayoutRoot.Background as ImageBrush;
        if (brushRoot != null)
        {
            ((BitmapImage)brushRoot.ImageSource).UriSource = null;
            brushRoot.ImageSource = null;
            LayoutRoot.Background = null;
        }

        gridHeader_hotNews.Children.Clear();
        gridHeader_hotNews = null;

        if (grid_Two.Background as ImageBrush != null)
        {
            ((BitmapImage)(grid_Two.Background as ImageBrush).ImageSource).UriSource = null;
            (grid_Two.Background as ImageBrush).ImageSource = null;
            grid_Two.Background = null;
        }
        if (btn_Two.Background as ImageBrush != null)
        {
            ((BitmapImage)(btn_Two.Background as ImageBrush).ImageSource).UriSource = null;
            (btn_Two.Background as ImageBrush).ImageSource = null;
            btn_Two.Click -= new RoutedEventHandler(btn_Two_Click);
            btn_Two.Background = null;
        }
        btn_Two = null;
        grid_Two.Children.Clear();
        grid_Two = null;

        grid_Content.Children.Clear();
        grid_Content = null;

        if (grid_footer.Background as ImageBrush != null)
        {
            ((BitmapImage)(grid_footer.Background as ImageBrush).ImageSource).UriSource = null;
            (grid_footer.Background as ImageBrush).ImageSource = null;
            grid_footer.Background = null;
        }
        if (btnspeaker.Background as ImageBrush != null)
        {
            ((BitmapImage)(btnspeaker.Background as ImageBrush).ImageSource).UriSource = null;
            (btnspeaker.Background as ImageBrush).ImageSource = null;
            btnspeaker.Background = null;
        }
        btnspeaker = null;

        grid_footer.Children.Clear();
        grid_footer = null;
        LayoutRoot.Children.Clear();
        LayoutRoot = null;
        GC.SuppressFinalize(this);
        GC.WaitForPendingFinalizers();
    }