“ :”字符，十六进制值0x3A，不能包含在名称中

我有一个 xml 文件，其中包含如下元素

<ab:test>Str</ab:test>

当我试图使用代码访问它时:

XElement tempElement = doc.Descendants(XName.Get("ab:test")).FirstOrDefault();

它给了我这个错误:

系统。韦伯。服务。协议。服务器无法处理请求。—— > 制度。Xml.XmlException: 名称中不能包含十六进制值0x3A 的“ :”字符。

我该怎么进去？

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最佳答案

If you want to use namespaces, LINQ to XML makes that really easy:

XNamespace ab = "http://whatever-the-url-is";
XElement tempElement = doc.Descendants(ab + "test").FirstOrDefault();

Look for an xmlns:ab=... section in your document to find out which namespace URI "ab" refers to.

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There is an overload of the Get method you might want to try that takes into account the namespace. Try this:

XElement tempElement = doc.Descendants(XName.Get("test", "ab")).FirstOrDefault();

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Try putting your namespace in { ... } like so:

string xfaNamespace = "{http://www.xfa.org/schema/xfa-template/2.6/}";

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Try to get namespace from the document

var ns = doc.Root.Name.Namespace;

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I was having the same error. I found I was adding code...

var ab = "http://whatever-the-url-is";

... but ab was determined to be a string. This caused the error reported by OP. Instead of using the VAR keyword, I used the actual data type XNamespace...

XNamespace ab = "http://whatever-the-url-is";

... and the problem went away.

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Deleting AndroidManifest.xml and AndroidManifest.xml.DISABLED worked for me.