How to read XML file in vb

This topic helps us how to read XML file using vb programming.
For creating a new XML file in VB.NET, we are using XmlTextWriter class.
How to create XML file using vb programming?

XML (Extensible Markup Language) – How to create XML file using vb

Extensible Markup Language (XML) is a markup language created to structure, store, and transport data by defining a set of rules for encoding documents in a format that is both human-readable and machine-readable.
The design goals of XML emphasize simplicity, generality, and usability over the Internet.
XML is a textual data format with strong support via Unicode for the languages of the world.
XML is developed by World Wide Web Consortium.
Hundreds of XML-based languages have been developed, including RSS, Atom, SOAP, and XHTML.

XmlDataDocument Class – How to read XML file in vb

XmlDataDocument allows structured data to be stored, retrieved, and manipulated through a relational DataSet.

Namespace: System.Xml
Assembly: System.Data (in System.Data.dll)

Syntax for XmlDataDocument

Syntax for XmlDataDocument
'Declaration
<ObsoleteAttribute("XmlDataDocument class will be removed in a future release.")> _
<HostProtectionAttribute(SecurityAction.LinkDemand, Synchronization := True)> _
Public Class XmlDataDocument _
	Inherits XmlDocument

Syntax for XmlDataDocument

'Declaration

<ObsoleteAttribute("XmlDataDocument class will be removed in a future release.")> _

<HostProtectionAttribute(SecurityAction.LinkDemand, Synchronization := True)> _

Public Class XmlDataDocument _

Inherits XmlDocument

XmlDataDocument.Load Method (XmlReader) – How to read XML file in vb

XmlDataDocument.Load Method loads the XmlDataDocument from the specified XmlReader.
Syntax for XmlDataDocument.Load Method (XmlReader)

'Declaration
Public Overrides Sub Load ( _
	reader As XmlReader _
)

'Declaration

Public Overrides Sub Load ( _

reader As XmlReader _

)

XmlDataDocument.GetElementsByTagName Method (String) – How to read XML file in vb

XmlDataDocument.GetElementsByTagName Method (String) returns an XmlNodeList containing a list of all descendant elements that match the specified Name.
Syntax for XmlDataDocument.GetElementsByTagName Method (String)

'Declaration
Public Overrides Function GetElementsByTagName ( _
	name As String _
) As XmlNodeList

'Declaration

Public Overrides Function GetElementsByTagName ( _

name As String _

) As XmlNodeList

How to read XML file in vb – Complete Code

 Dim xmldoc As New XmlDataDocument()
        Dim xmlnode As XmlNodeList
        Dim i As Integer
        Dim str As String
        Dim fs As New FileStream("C:\product.xml", FileMode.Open, FileAccess.Read)
        xmldoc.Load(fs)
        xmlnode = xmldoc.GetElementsByTagName("Product")
        For i = 0 To xmlnode.Count - 1
            xmlnode(i).ChildNodes.Item(0).InnerText.Trim()
            str = xmlnode(i).ChildNodes.Item(0).InnerText.Trim() & " | " & xmlnode(i).ChildNodes.Item(1).InnerText.Trim() & " | " & xmlnode(i).ChildNodes.Item(2).InnerText.Trim()
            MsgBox(str)
        Next

Dim xmldoc As New XmlDataDocument()

Dim xmlnode As XmlNodeList

Dim i As Integer

Dim str As String

Dim fs As New FileStream("C:\product.xml", FileMode.Open, FileAccess.Read)

xmldoc.Load(fs)

xmlnode = xmldoc.GetElementsByTagName("Product")

For i = 0 To xmlnode.Count - 1

xmlnode(i).ChildNodes.Item(0).InnerText.Trim()

str = xmlnode(i).ChildNodes.Item(0).InnerText.Trim() & " | " & xmlnode(i).ChildNodes.Item(1).InnerText.Trim() & " | " & xmlnode(i).ChildNodes.Item(2).InnerText.Trim()

MsgBox(str)