比较XML文件以查看C#是否存在差异 [英] Comparing XML Files to see if there is a difference C#

问题描述

我正在创建一个控制台应用程序，允许某人输出和XML文件.我需要的是能够在每次运行时检查XML文件是否已更改以及是否已更改?有什么想法吗?

I am creating a console app that allows for someone to output and XML file. What I need is to be able to check every time it is run whether or not the XML file has changed and if so to increment it? Any ideas?

XmlDocument doc = new XmlDocument();
if (doc.LastChild.Value == lsat saved doc)
{
   // My code here.
}

推荐答案

您可以尝试创建xml文件的MD5哈希，并检查哈希是否相等.其余的您都知道.

You could try creating an MD5 hash of the xml file and check if the hashes are equal. You know the rest.

有时候，MD5哈希可能导致相同的结果.我将执行一些检查，这些检查将逐渐花费更多时间:

0)查看文件大小是否相同

1)如果大小相同，则将文件作为文本字符串加载，消除空格，并进行简单的相等比较.

There are times when a MD5 hash could result in an identical result. I would perform several checks that took gradually more time:

0) See if the file sizes are the same

1) If they are the same size, load the files as text strings, eliminate the white space, and do a simple equality comparison.

最后我还好用了

if (doc.InnerXml.Length != doc2.InnerXml.Length)
           {
               UpdateLatestVersion(newVersion);
           }

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