如何处置固定文件 [英] How to dispose a FixedDocument

问题描述

在应用程序中，我创建一个FixedDocument作为打印预览。每当用户通过创建新的FixedDocument并替换documentviewer使用的旧数据来更改某些数据时，都会刷新此预览。

In an application I create a FixedDocument as preview of my print. This preview is refreshed whenever the user changes some data by creating a new FixedDocument and replacing the old one used by the documentviewer.

问题是：FixedDocument包含大量资源

Problem is: the FixedDocument contains a lot of resources, some of them of type Image, created from ImageSources from resources.

该程序正在消耗内存并很快用完GDI句柄。

The program is eating up memory and runs out of GDI handles soon.

我的问题：如何处置FixedDocument，以便正确处理所有内容？

My question: how do I dispose the FixedDocument so all the content is disposed properly?

推荐答案

这是一个有相同问题的人：
http://social.msdn.microsoft.com/Forums/en/wpf/thread/f5216805-5730-4be2-82fa-8a7e7757dd19

Here's someone with the same problem: http://social.msdn.microsoft.com/Forums/en/wpf/thread/f5216805-5730-4be2-82fa-8a7e7757dd19

找到另一篇有趣的文章：
http://blogs.msdn.com/b/jgoldb/archive/2008/02/04/finding-memory-leaks-in-wpf-based-applications.aspx

Found another interesting article: http://blogs.msdn.com/b/jgoldb/archive/2008/02/04/finding-memory-leaks-in-wpf-based-applications.aspx

我使用

        GC.Collect();
        GC.WaitForPendingFinalizers();
        GC.Collect();

模式。因此，对我而言，内存使用情况并不太糟。但这是一个丑陋的解决方法。

pattern after attaching the new FixedDocument at the DocumentViewer. So for me the memory usage isn't growing too bad. But it's an ugly workaround.

看看本文的位图部分，也许对您有用吗？

Take a look at the "Bitmap" section of the article, maybe it applies to you?

这篇关于如何处置固定文件的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！