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Version Q2 2011 released 07/12/2011
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TreeView / Populating from XML

  • Populated via the LoadContentFile method
    • DesktopDesktop
      • Administrator
        • AppData
        • Contacts
        • Downloads
        • Documents
        • Favorites
        • Music
        • Pictures
        • Saved Games
        • Searches
        • Videos
      • My ComputerComputer
        • WebServer (\\10.0.0.80) (W:)
        • Local Disk (C:)
          • inetpub
            • AdminScripts
  • Bound to XmlDataSource
    • Desktop
      • Administrator
        • AppData
        • Contacts
        • Downloads
        • Documents
        • Favorites
        • Music
        • Pictures
        • Saved Games
        • Searches
        • Videos
      • Computer
        • WebServer (\\10.0.0.80) (W:)
        • Local Disk (C:)
          • inetpub
            • AdminScripts

  • You can seamlessly populate RadTreeView from XML.

    • Loading from XML file 
      RadTreeView1.LoadContentFile("TreeView.xml");
    • Loading from XML string 
      RadTreeView1.LoadXml("<Tree><Node Text="Books"/><Node Text="Music"/></Tree>");

    You can also retrieve the current RadTreeView structure in XML format:

    • C# 
      string xml = RadTreeView1.GetXml();
    • VB 
      Dim xml as String = RadTreeView1.GetXml()

Source Code

C# VB.NET
Show code in new window Demo isolation steps
  • <%@ Page AutoEventWireup="false" CodeFile="DefaultVB.aspx.vb" Inherits="Telerik.Web.Examples.TreeView.XmlStringBinding.DefaultVB"
        Language="vb" %>

    <%@ Register TagPrefix="qsf" Namespace="Telerik.QuickStart" %>
    <%@ Register TagPrefix="qsf" TagName="Header" Src="~/Common/Header.ascx" %>
    <%@ Register TagPrefix="qsf" TagName="HeadTag" Src="~/Common/HeadTag.ascx" %>
    <%@ Register TagPrefix="qsf" TagName="Footer" Src="~/Common/Footer.ascx" %>
    <%@ Register TagPrefix="telerik" Namespace="Telerik.Web.UI" Assembly="Telerik.Web.UI" %>
    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
    <html xmlns="http://www.w3.org/1999/xhtml">
    <head runat="server">
        <qsf:HeadTag runat="server" ID="Headtag1"></qsf:HeadTag>
        <link href="styles.css" rel="stylesheet" type="text/css" />
    </head>
    <body class="BODY">
        <form runat="server" id="mainForm" method="post">
            <qsf:Header runat="server" ID="Header1" NavigationLanguage="VB"></qsf:Header>
            <telerik:RadScriptManager runat="server" ID="RadScriptManager1" />
            <ul class="treeview-list">
                <li class="treeview-item" style="border: none">
                    <div class="text">
                        Populated via the LoadContentFile method</div>
                    <telerik:RadTreeView ID="RadTreeView1" runat="server" />
                </li>
                <li class="treeview-item">
                    <div class="text">
                        Bound to XmlDataSource</div>
                    <telerik:RadTreeView ID="RadTreeView2" runat="server" DataSourceID="XmlDataSource1">
                        <DataBindings>
                            <telerik:RadTreeNodeBinding DataMember="Node" TextField="Text" ImageUrlField="ImageUrl"
                                ExpandedField="Expanded" />
                        </DataBindings>
                    </telerik:RadTreeView>
                    <asp:XmlDataSource runat="server" ID="XmlDataSource1" DataFile="TreeView.xml" XPath="/Tree/Node" />
                </li>
            </ul>
            <qsf:Footer runat="server" ID="Footer1"></qsf:Footer>
        </form>
    </body>
    </html>

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