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Load XML file data in a Treeview control in Visual Basic 2005

Load XML file data in a Treeview control in Visual Basic 2005

  • Comments 6

We have an XML file that needs to be loaded in the TreeView control. This entry shows How do we do it in VB.NET 2005.

Let's create a VB.NET Project. Drag and drop a TreeViewControl and name it tvwMetabase. Also drag a Button control and name it btnLoad. Modify the path of the following code to point to any valid xml file and run the project. On clicking your Button you should see the Treeview control loaded with the XML file's data!!

    Private Sub btnLoadXML_Click( _
        ByVal sender As System.Object, _
        ByVal e As System.EventArgs _
    ) Handles btnLoad.Click
        Try
            Dim xmlDoc As New XmlDocument()
            Dim tnNode As TreeNode
            xmlDoc.Load("C:\Metabase.xml") '<--- Change this path with a valid XML file
            tvwMetabase.Nodes.Clear()
            tvwMetabase.Nodes.Add(xmlDoc.DocumentElement.Name)
            tnNode = New TreeNode
            tnNode = tvwMetabase.Nodes(0)
            AddNode(xmlDoc.DocumentElement, tnNode)
        Catch xmlEx As XmlException
            MessageBox.Show(xmlEx.Message)
        Catch ex As Exception
            MessageBox.Show(ex.Message)
        End Try
    End Sub
    Private Sub AddNode(ByVal inXmlNode As XmlNode, ByVal inTreeNode As TreeNode)
        Dim xNode As XmlNode
        Dim tNode As TreeNode
        Dim nodeList As XmlNodeList
        Dim i As Integer
        If inXmlNode.HasChildNodes Then
            nodeList = inXmlNode.ChildNodes
            i = 0
            While i <= nodeList.Count - 1
                xNode = inXmlNode.ChildNodes(i)
                inTreeNode.Nodes.Add(New TreeNode(xNode.Name))
                tNode = inTreeNode.Nodes(i)
                AddNode(xNode, tNode)
                i += 1
            End While
        Else
            inTreeNode.Text = (inXmlNode.OuterXml).Trim
        End If
    End Sub

Enjoy!
-Rahul Soni


  • Hi Rahul,

    This is a neat piece of code.  Thank you.  

    Luvy Gonzalez
  • urgently needed
  • Thx for your info... btw, can you help me giving the code also with thedata..

    I means if I use <Company name="aaa">

    </company>

    I want also the name include in the tree view. Please help me.. you can send it to slashcanadian@gmail.com thank you

  • Thx for your info... btw, can you help me giving the code also with thedata..

    I means if I use <Company name="aaa">

    </company>

    I want also the name include in the tree view. Please help me.. you can send it to slashcanadian@gmail.com thank you

  • Thanks! Easy and fast:-)

  • thanks for this view. But i want this is reverse process. Tree view to XML file  and XML file  to tree view in the windows form 2008.

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