Create and Update an XML file in C#

In this article, i'll show you how to create and update an XML file in C#. Hope this help!

Create an XML file

Let's start by creating a new XML file. To do this, we'll use XmlTextWriter. Open your Main function and copy the code below:

static void Main(string[] args) {
    // create a new file
    string path = "E:\\Example.xml";
    XmlTextWriter writer = new XmlTextWriter(path, System.Text.Encoding.UTF8);

    // set output's view format
    writer.Formatting = Formatting.Indented;

    // write XML declaration
    writer.WriteStartDocument(true);

    // compose XML content
    writer.WriteStartElement("inventory");
        writer.WriteAttributeString("category", "vehicle");
        writer.WriteStartElement("item");
            writer.WriteAttributeString("id","p1");
            writer.WriteString("Car");
        writer.WriteEndElement();
        writer.WriteStartElement("item");
            writer.WriteAttributeString("id", "p2");
            writer.WriteString("Bicycle");
        writer.WriteEndElement();
    writer.WriteEndElement();

    // close session
    writer.Close();
}