Remove the escape sequence '\' from string to convert it to XmlDocument

问题

I have a web service which returns a struct object, so I get the response as the following XML string. Now I need to load it into XmlDocument object but how do I get rid of the escape sequences in the string. The '\' with every '"' is causing error.

<?xml version=\"1.0\" encoding=\"utf-8\"?>
<Quote xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns=\"http://tempuri.org/\">
<price>19656</price>
</Quote>

回答1:

Use Regex.Unescape method.

String unescapedString = Regex.Unescape(textString);

回答2:

Regex.Unescape doesn't un-escape ". According to the documentation, it does the following:

"..by removing the escape character ("\") from each character escaped by the method. These include the \, *, +, ?, |, {, [, (,), ^, $,., #, and white space characters. In addition, the Unescape method unescapes the closing bracket (]) and closing brace (}) characters."

回答3:

So the webservice is returning the string with actual backslashes in it? If so, I would say there's a problem with that webservice you're using, but you should be able to get around it by doing this:

xmlStr = xmlStr.Replace("\\\"", "\"");

回答4:

You can try escaping in verbatim strings

xmlStr= xmlStr.Contains("\\") ? xmlStr.Replace("\\", @"\"") : xmlStr;

来源：https://stackoverflow.com/questions/14810215/remove-the-escape-sequence-from-string-to-convert-it-to-xmldocument