C＃解析XML与和省略号引发异常 [英] c# parsing xml with and apostrophe throws exception

问题描述

我解析一个xml文件，并试图发现中有撇号的节点时，我遇到了一个问题。当项目名称没有这个一切工作正常。我曾尝试更换不同的逃逸字符的撇号，但我运气不好。

I am parsing an xml file and am running into an issue when trying find a node that has an apostrophe in it. When item name does not have this everything works fine. I have tried replacing the apostrophe with different escape chars but am not having much luck

string s = "/itemDB/item[@name='" + itemName + "']";

// Things i have tried that did not work
// s.Replace("'", "''");
// .Replace("'", "\'");

XmlNode parent = root.SelectSingleNode(s);

我总是收到一个XPathException的。什么是做到这一点的正确方法。谢谢

I always receive an XPathException. What is the proper way to do this. Thanks

推荐答案

您可以做到这样的：

XmlDocument root = new XmlDocument();

root.LoadXml(@"<itemDB><item name=""abc'def""/></itemDB>");

XmlNode node = root.SelectSingleNode(@"itemDB/item[@name=""abc'def""]");

请注意在逐字字符串'@'和双引号。

Note the verbatim string literal '@' and the double quotes.

您的代码会再看看这样，也没有必要更换任何东西：

Your code would then look like this and there is no need to replace anything:

var itemName = @"abc'def";

string s = @"/itemDB/item[@name=""" + itemName + @"""]";

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