C# XML规范化在转换的输出中返回空元素

我有一个问题，就是如何使用XPath语句从XmlDocument中选择节点

让SelectNodes工作的唯一方法是创建一个非默认名称空间“x”，然后在XPath语句中显式引用节点

虽然这可以工作并为我提供一个节点列表，但是规范化无法为输出中的选定节点生成任何内容

我尝试过使用XmlDsigExcC14NTransform并指定名称空间，但这会产生相同的输出

下面是生成的xml输出示例（使用my中的xml）：

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另一个StackOverflow用户有

在使用这段新代码时，我发现结果会有所不同，这取决于将节点传递到LoadInput方法的方式。实现下面的代码是可行的

我仍然很好奇，为什么它会以一种方式工作，而不是另一种方式，但会留下来以防万一

static void Main(string[] args)
{
    string path = @"..\..\TestFiles\Test_1.xml";
    if (File.Exists(path) == true)
    {
        XmlDocument xDoc = new XmlDocument();
        xDoc.PreserveWhitespace = true;
        using (FileStream fs = new FileStream(path, FileMode.Open))
        {
            xDoc.Load(fs);
        }

        //Instantiate an XmlNamespaceManager object. 
        System.Xml.XmlNamespaceManager xmlnsManager = new System.Xml.XmlNamespaceManager(xDoc.NameTable);

        //Add the namespaces used to the XmlNamespaceManager.
        xmlnsManager.AddNamespace("x", "http://www.myApps.co.uk/");

        // Create a list of nodes to have the Canonical treatment
        XmlNodeList nodeList = xDoc.SelectNodes("/x:ApplicationsBatch/x:Applications|/x:ApplicationsBatch/x:Applications//*", xmlnsManager);

        //Initialise the stream to read the node list
        MemoryStream nodeStream = new MemoryStream();
        XmlWriter xw = XmlWriter.Create(nodeStream);
        nodeList[0].WriteTo(xw);
        xw.Flush();
        nodeStream.Position = 0;

        // Perform the C14N transform on the nodes in the stream
        XmlDsigC14NTransform transform = new XmlDsigC14NTransform();
        transform.LoadInput(nodeStream);

        // use a new memory stream for output of the transformed xml 
        // this could be done numerous ways if you don't wish to use a memory stream
        MemoryStream outputStream = (MemoryStream)transform.GetOutput(typeof(Stream));
        File.WriteAllBytes(@"..\..\TestFiles\CleanTest_1.xml", outputStream.ToArray());
    }
}

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嗨，这是v.v.v.旧的，但我想你没有用来生成哈希和加密的代码吧？我正在解决同样的问题。。。。。。。。。谢谢

static void Main(string[] args)
{
    string path = @"..\..\TestFiles\Test_1.xml";
    if (File.Exists(path) == true)
    {
        XmlDocument xDoc = new XmlDocument();
        xDoc.PreserveWhitespace = true;
        using (FileStream fs = new FileStream(path, FileMode.Open))
        {
            xDoc.Load(fs);
        }

        //Instantiate an XmlNamespaceManager object. 
        System.Xml.XmlNamespaceManager xmlnsManager = new System.Xml.XmlNamespaceManager(xDoc.NameTable);

        //Add the namespaces used to the XmlNamespaceManager.
        xmlnsManager.AddNamespace("x", "http://www.myApps.co.uk/");

        // Create a list of nodes to have the Canonical treatment
        XmlNodeList nodeList = xDoc.SelectNodes("/x:ApplicationsBatch/x:Applications|/x:ApplicationsBatch/x:Applications//*", xmlnsManager);

        //Initialise the stream to read the node list
        MemoryStream nodeStream = new MemoryStream();
        XmlWriter xw = XmlWriter.Create(nodeStream);
        nodeList[0].WriteTo(xw);
        xw.Flush();
        nodeStream.Position = 0;

        // Perform the C14N transform on the nodes in the stream
        XmlDsigC14NTransform transform = new XmlDsigC14NTransform();
        transform.LoadInput(nodeStream);

        // use a new memory stream for output of the transformed xml 
        // this could be done numerous ways if you don't wish to use a memory stream
        MemoryStream outputStream = (MemoryStream)transform.GetOutput(typeof(Stream));
        File.WriteAllBytes(@"..\..\TestFiles\CleanTest_1.xml", outputStream.ToArray());
    }
}