“xsi:type”属性更改为“type” c# xml 文档

Question

I'm using XMLDocument to create a XML file, but when i set an attribute to an element called "xsi:type" in the.xml generated file this attribute is changed to just "type".

This is the output that i'm expecting:

<ODX xsi:type="VALUE" />

This is my code

using System.Xml;
        public static void xml_test()
        {
            XmlDocument doc = new XmlDocument();
            XmlDeclaration declaire = doc.CreateXmlDeclaration("1.0", "utf-8", null);
            XmlElement ODX = doc.CreateElement("ODX");
            ODX.SetAttribute("xsi:type", "VALUE");
            doc.AppendChild(ODX);
            doc.Save("C:\\Users\\dev\\Pictures\\DocParser\\DocParser\\xml_question_test.xml");
        }

This is content of the xml_question_test.xml output file that i get,:

<ODX type="VALUE" />

Notice how change the name of the attribute from "xsi:type" to "type", i tried to set the name of the attribute as literal with @ before the string but it didn't work... i haven't found anything useful...

Answer 1

Since you are adding xs , you need to specify the namespace which it represents.

public static void xml_test()
    {
        XmlDocument doc = new XmlDocument();
        XmlDeclaration declaire = doc.CreateXmlDeclaration("1.0", "utf-8", null);
        XmlElement ODX = doc.CreateElement("ODX");
        var attr = doc.CreateAttribute("xs:type", "http://www.w3.org/2001/XMLSchema");
        attr.Value = "VALUE";
        ODX.Attributes.Append(attr);
        doc.AppendChild(ODX);
        doc.Save("C:\\Users\\nemmil\\OneDrive - Snow Software\\Documents\\Creative Cloud user guide\\xml_question_test.xml");
    }

You can read more here about XML namespaces: https://www.w3schools.com/xml/xml_namespaces.asp