CLOSE 事件后如何保存和删除文档? [英] How to save And delete document after CLOSE event?

问题描述

我有一个将word文档存储在数据库中的程序，它们被用户反复打开、关闭，然后保存回数据库.打开时我将它们放在临时文件夹中.但是关闭的时候想保存回数据库然后直接删除.

I have a program that stores word documents in a database, and they are repeatedly opened, closed by the user and then saved back to the database. when opening I place them on a temp folder. but when closed, I want to save is back to the database and then delete it directly.

我试过了:

...

((DocumentEvents_Event)document).Close += DocumentClose;

...

delegate void MethodDelegate();

private void DocumentClose()
{
     new MethodDelegate(deleteLater)();
}

void deleteLater()
{
     //document.Close();
     Thread.Sleep(1000);
     File.Delete(this.tempDocFilePath);
}

但这不起作用，我收到一条错误消息，告诉我文件已打开.当我取消注释document.Close();"时接下来的两行不执行

but this don't work, and I get an error message telling me the file is already opened. and when I uncomment "document.Close();" the next two lines are not excuted

有什么想法吗?

推荐答案

此代码可能存在竞争条件.永远不要相信睡眠解决方案.等待特定事件或民意调查，然后采取行动.

This code is possibly subject to a race condition. NEVER trust a Sleep-solution. Wait for a specific event or poll and then take action.

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