指定节点不能作为该节点的有效子节点插入，因为指定节点类型错误

Question

我正在通过 C# 代码动态构建 xml，但出现此错误

“指定节点不能作为该节点的有效子节点插入，因为指定节点是错误的”

这是我的主课

internal class  Program
    {
        private static void Main(string[] args)
        {
            CreateXml xml = new CreateXml();
            xml.multipleXML();
        }
    }

我在下面评论为“错误”，其中出现运行时异常。请帮助如何修复此错误。

我的 Xml 课程在这里。

internal class CreateXml
    {

        private XmlDocument HandlingXmlDoc;
        private String baseHandlingXML = "<?xml version=\"1.0\" encoding=\"utf-8\"?><SHandling><BLocation><SLocation><Identifier>02898</Identifier></SLocation></BLocation><Context><UserName>0289800001</UserName><Application>STOCK</Application></Context><Counting><SubmissionDateTime>2014-04-02T16:38:48.9345238+01:00</SubmissionDateTime><ProcessImmediately>YES</ProcessImmediately><Counts><Count><ProductIdentifier>050025488</ProductIdentifier><CountDateTime>2014-04-02T16:38:49.366567+01:00</CountDateTime><LocationCounts></LocationCounts></Count></Counts></Counting></SHandling>";
        private XmlDocument locCountXmlDocument;
        private String baseLocCountXML = "<LocationCount><Name>Bangalore</Name><SCounts><SCount><Quantity>1</Quantity><UnitOfMeasure>CASES</UnitOfMeasure></SCount><SCount><Quantity>1</Quantity><UnitOfMeasure>SINGLES</UnitOfMeasure></SCount></SCounts></LocationCount>";

        public CreateXml()
        {
            Initialise();
        }

        public String GetStockHandlingXmlString { get { return HandlingXmlDoc.OuterXml; } }
        public XmlDocument GetStockHandlingXmlDocument { get { return HandlingXmlDoc; } }

        private void Initialise()
        {
            HandlingXmlDoc = new XmlDocument();
            HandlingXmlDoc.LoadXml(baseHandlingXML);

            locCountXmlDocument = new XmlDocument();
            locCountXmlDocument.LoadXml(baseLocCountXML);
        }

        public void multipleXML()
        {
            XmlNode countNode = HandlingXmlDoc.CreateNode(XmlNodeType.Element, "Count", null);

            XmlNode productIdentifierNode = HandlingXmlDoc.CreateNode(XmlNodeType.Element, "ProductIdentifier", null);
            productIdentifierNode.InnerText = "123345";

            XmlNode countDateTimeNode = HandlingXmlDoc.CreateNode(XmlNodeType.Element, "CountDateTime", null);
            countDateTimeNode.InnerText = DateTime.Now.ToString();

            //XmlNode locationCountNode = HandlingXmlDoc.CreateNode(XmlNodeType.Element, "LocationCounts", null);

            countNode.AppendChild(productIdentifierNode);
            countNode.AppendChild(countDateTimeNode);
            countNode.AppendChild(SetNewLocation("Bangalore","30","30"));//ERROR

            HandlingXmlDoc.SelectSingleNode("//SHandling//Counting//Counts").AppendChild(countNode);


        }

        private XmlNode SetNewLocation(String location, String casesQuantity, String singlesQuantity)
        {
            XmlDocument docCountXml = new XmlDocument();
            docCountXml.LoadXml(baseLocCountXML);

            SetValue(docCountXml, "LocationCount/Name", location);

            var xmlNodeList = docCountXml.SelectNodes("LocationCount/SCounts/SCount/Quantity");
            xmlNodeList[0].FirstChild.Value = casesQuantity;
            xmlNodeList[1].FirstChild.Value = singlesQuantity;

            return docCountXml.SelectSingleNode("/");
        }
        private static void SetValue(XmlDocument xmlDocument, String key, String value)
        {
            var xmlNode = xmlDocument.SelectSingleNode(key);
            xmlNode.FirstChild.Value = value;
        }
    }

Answer 1

问题是您正在从不同的 xml 插入一个外部 xmlnode。

我的编辑在这里，我使用一种解决方法将 xmlnode 加载到新文档中，然后将其附加到您的节点

countNode.AppendChild(countNode.OwnerDocument.ImportNode(test, true));

试试这个解决方案

public void multipleXML()
        {
            XmlNode countNode = HandlingXmlDoc.CreateNode(XmlNodeType.Element, "Count", null);

            XmlNode productIdentifierNode = HandlingXmlDoc.CreateNode(XmlNodeType.Element, "ProductIdentifier", null);
            productIdentifierNode.InnerText = "123345";

            XmlNode countDateTimeNode = HandlingXmlDoc.CreateNode(XmlNodeType.Element, "CountDateTime", null);
            countDateTimeNode.InnerText = DateTime.Now.ToString();

            //XmlNode locationCountNode = HandlingXmlDoc.CreateNode(XmlNodeType.Element, "LocationCounts", null);

            countNode.AppendChild(productIdentifierNode);
            countNode.AppendChild(countDateTimeNode);
            var test = SetNewLocation("Bangalore", "30", "30");
            countNode.AppendChild(countNode.OwnerDocument.ImportNode(test, true));

            //countNode.AppendChild(test);//ERROR

            HandlingXmlDoc.SelectSingleNode("//SHandling//Counting//Counts").AppendChild(countNode);


        }

和 SetNewLocation 函数中的另一个编辑

（我的编辑return docCountXml.SelectSingleNode("LocationCount");）

 private XmlNode SetNewLocation(String location, String casesQuantity, String singlesQuantity)
        {
            XmlDocument docCountXml = new XmlDocument();
            docCountXml.LoadXml(baseLocCountXML);

            SetValue(docCountXml, "LocationCount/Name", location);

            var xmlNodeList = docCountXml.SelectNodes("LocationCount/SCounts/SCount/Quantity");
            xmlNodeList[0].FirstChild.Value = casesQuantity;
            xmlNodeList[1].FirstChild.Value = singlesQuantity;

            return docCountXml.SelectSingleNode("LocationCount");
        }

参考这里和这里