Imports System.Xml
Public Class Form1
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim writer As New XmlTextWriter("product.xml", System.Text.Encoding.UTF8)
        writer.WriteStartDocument(True)
        writer.Formatting = Formatting.Indented
        writer.Indentation = 2
        writer.WriteStartElement("Table")
        createNode(1, "Product 1", "1000", writer)
        createNode(2, "Product 2", "2000", writer)
        createNode(3, "Product 3", "3000", writer)
        createNode(4, "Product 4", "4000", writer)
        writer.WriteEndElement()
        writer.WriteEndDocument()
        writer.Close()
    End Sub
    Private Sub createNode(ByVal pID As String, ByVal pName As String, ByVal pPrice As String, ByVal writer As XmlTextWriter)
        writer.WriteStartElement("Product")
        writer.WriteStartElement("Product_id")
        writer.WriteString(pID)
        writer.WriteEndElement()
        writer.WriteStartElement("Product_name")
        writer.WriteString(pName)
        writer.WriteEndElement()
        writer.WriteStartElement("Product_price")
        writer.WriteString(pPrice)
        writer.WriteEndElement()
        writer.WriteEndElement()
    End Sub
End Class