dcsimg
Login | Register   
LinkedIn
Google+
Twitter
RSS Feed
Download our iPhone app
TODAY'S HEADLINES  |   ARTICLE ARCHIVE  |   FORUMS  |   TIP BANK
Browse DevX
Sign up for e-mail newsletters from DevX

By submitting your information, you agree that devx.com may send you DevX offers via email, phone and text message, as well as email offers about other products and services that DevX believes may be of interest to you. DevX will process your information in accordance with the Quinstreet Privacy Policy.


Tip of the Day
Language: VB7
Expertise: Intermediate
Nov 11, 2002

WEBINAR:

On-Demand

Building the Right Environment to Support AI, Machine Learning and Deep Learning


DisplayXmlFile - loading a XML file in a TreeView

' Display a XML file in a TreeView
' Note: requires Imports System.Xml
' Example: DisplayXmlFile("employees.xml", TreeView1)

Sub DisplayXmlFile(ByVal filename As String, ByVal tvw As TreeView)
    Dim xmldoc As New XmlDocument()
    xmldoc.Load(filename)
    ' Add it to the TreeView Nodes collection
    DisplayXmlNode(xmldoc, tvw.Nodes)
    ' Expand the root node.
    tvw.Nodes(0).Expand()
End Sub

Sub DisplayXmlNode(ByVal xmlnode As XmlNode, ByVal nodes As TreeNodeCollection)
    ' Add a TreeView node for this XmlNode.
    ' (Using the node's Name is OK for most XmlNode types.)
    Dim tvNode As TreeNode = nodes.Add(xmlnode.Name)

    Select Case xmlnode.NodeType
        Case XmlNodeType.Element
            ' This is an element: Check whether there are attributes.
            If xmlnode.Attributes.Count > 0 Then
                ' Create an ATTRIBUTES node.
                Dim attrNode As TreeNode = tvNode.Nodes.Add("(ATTRIBUTES)")
                ' Add all the attributes as children of the new node.
                Dim xmlAttr As XmlAttribute
                For Each xmlAttr In xmlnode.Attributes
                    ' Each node shows name and value.
                    attrNode.Nodes.Add(xmlAttr.Name & " = '" & xmlAttr.Value & _
                        "'")
                Next
            End If
        Case XmlNodeType.Text, XmlNodeType.CDATA
            ' For these node types we display the value
            tvNode.Text = xmlnode.Value
        Case XmlNodeType.Comment
            tvNode.Text = "<!--" & xmlnode.Value & "-->"
        Case XmlNodeType.ProcessingInstruction, XmlNodeType.XmlDeclaration
            tvNode.Text = "<?" & xmlnode.Name & " " & xmlnode.Value & "?>"
        Case Else
            ' ignore other node types.
    End Select

    ' Call this routine recursively for each child node.
    Dim xmlChild As XmlNode = xmlnode.FirstChild
    Do Until xmlChild Is Nothing
        DisplayXmlNode(xmlChild, tvNode.Nodes)
        xmlChild = xmlChild.NextSibling
    Loop
End Sub


' Note: This code is taken from Francesco Balena's
' "Programming Microsoft Visual Basic .NET" - MS Press 2002, ISBN 0735613753
' You can read a free chapter of the book at 
' http://www.vb2themax.com/HtmlDoc.asp?Table=Books&ID=101000
Francesco Balena
 
Comment and Contribute

 

 

 

 

 


(Maximum characters: 1200). You have 1200 characters left.

 

 

Sitemap
Thanks for your registration, follow us on our social networks to keep up-to-date