c# - 尝试写入 C# 的现有 XML 文件

Question

非常感谢您

这是原始的 XML 文件

<my:Incident>
       <my:Category>This is for Category</my:Category>
              <my:Status>`Status is Close`</my:Status>
       <my:Description>`This is the description part</my:Description>
</my:Incident>

我想在 my:Incident 下添加其他字段

这是一个例子:

<my:Incident>
       <my:Category>This is for Category</my:Category>
              <my:Status>`Status is Close`</my:Status>
       <my:SummaryDescription>This is the summary</my:SummaryDescription>
       <my:Description>`This is the description part</my:Description>
</my:Incident>

我尝试实现但收到此错误消息:

The ':' character, hexadecimal value 0x3A, cannot be included in a name.

public void writerXMLTest(string fileName)
        {

            if (!File.Exists(fileName))
            {
                XmlTextWriter writer = new XmlTextWriter(fileName, null);
                writer.WriteStartElement("my:Incident");
                writer.WriteEndElement();
                writer.Close();
            }

            XDocument doc = XDocument.Load(fileName);
            XElement demoNode = new XElement("my:Incident");
            demoNode.Add(new XElement("my:SummaryDescription", "Test Test"));


            Console.WriteLine("I write it!!!!!"); 
        }

如果有人能指导我在我的代码中哪里做错了，我将不胜感激。

---

我稍微修改了代码。但是现在我无法将它写入现有的 XML 文件

这是我的代码:

public void writerXMLTest(string fileName)
        {

            if (!File.Exists(fileName))
            {
                XmlTextWriter writer = new XmlTextWriter(fileName, null);
                writer.WriteStartElement("Incident", "my");
                writer.WriteEndElement();
                writer.Close();
            }

            XDocument doc = XDocument.Load(fileName);
            XElement demoNode = new XElement("SummaryDescription", "Test Test");


            Console.WriteLine("I write it!!!!!"); 
        }

Answer 1

这是错误的:

 writer.WriteStartElement("my:Incident");

这是对的:

 writer.WriteStartElement("Incident", "blablablaSpace:my");

编辑:

 writer.WriteStartElement("Incident", "http://schemas.microsoft.com/office/infopath/2003/myXSD/2005-09-22T20:42:56:my");