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Version Q2 2011 released 07/12/2011
select

TreeView / Keyboard Support

  • Mailbox - John Smith
    • Calendar
    • Contacts
    • Deleted Items (6)
    • Drafts
    • Inbox (14)
      • Invoices
    • Journal
    • Junk E-mail
    • Outbox
    • RSS Feeds
    • Sent Items
    • Tasks
    • Search Folders

    1. Focus the treeview using Tab key. In this example TabIndex is set to 1.
    2. Navigate through the nodes using the up / down arrows.
    3. Expand/collapse a node using + / - or left / right arrow.
    4. Select a node using the Enter key.
    5. Check / uncheck a node using the Space key.

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.Keyboard.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>
    </head>
    <body class="BODY">
        <form runat="server" id="mainForm" method="post">
            <qsf:Header runat="server" ID="Header1" NavigationLanguage="VB" XhtmlCompliant="False">
            </qsf:Header>
            <telerik:RadScriptManager runat="server" ID="RadScriptManager1" />
                        
            <telerik:RadTreeView ID="RadTreeView1" Height="320px" Width="300" runat="server" CheckBoxes="True"
                TabIndex="1" >
                <Nodes>
                    <telerik:RadTreeNode Text="Mailbox - John Smith" Expanded="True" ImageUrl="~/TreeView/Img/Outlook/mailbox.gif">
                        <Nodes>
                            <telerik:RadTreeNode Text="Calendar" ImageUrl="~/TreeView/Img/Outlook/calendar.gif" />
                            <telerik:RadTreeNode Text="Contacts" ImageUrl="~/TreeView/Img/Outlook/contacts.gif" />
                            <telerik:RadTreeNode Text="Deleted Items (6)" ImageUrl="~/TreeView/Img/Outlook/delete.gif" />
                            <telerik:RadTreeNode Text="Drafts" ImageUrl="~/TreeView/Img/Outlook/drafts.gif" />
                            <telerik:RadTreeNode Text="Inbox (14)" Expanded="True" ImageUrl="~/TreeView/Img/Outlook/inbox.gif">
                                <Nodes>
                                    <telerik:RadTreeNode Text="Invoices" ImageUrl="~/TreeView/Img/Outlook/folder.gif" />
                                </Nodes>
                            </telerik:RadTreeNode>
                            <telerik:RadTreeNode Text="Journal" ImageUrl="~/TreeView/Img/Outlook/journal.gif" />
                            <telerik:RadTreeNode Text="Junk E-mail" ImageUrl="~/TreeView/Img/Outlook/junk.gif" />
                            <telerik:RadTreeNode Text="Outbox" ImageUrl="~/TreeView/Img/Outlook/outbox.gif" />
                            <telerik:RadTreeNode Text="RSS Feeds" ImageUrl="~/TreeView/Img/Outlook/rss.gif" />
                            <telerik:RadTreeNode Text="Sent Items" ImageUrl="~/TreeView/Img/Outlook/sent.gif" />
                            <telerik:RadTreeNode Text="Tasks" ImageUrl="~/TreeView/Img/Outlook/tasks.gif" />
                            <telerik:RadTreeNode Text="Search Folders" ImageUrl="~/TreeView/Img/Outlook/search.gif">
                                <Nodes>
                                    <telerik:RadTreeNode Text="Form Follow Up" ImageUrl="~/TreeView/Img/Outlook/search.gif" />
                                    <telerik:RadTreeNode Text="Large Mail" ImageUrl="~/TreeView/Img/Outlook/search.gif" />
                                    <telerik:RadTreeNode Text="Unread Mail" ImageUrl="~/TreeView/Img/Outlook/search.gif" />
                                </Nodes>
                            </telerik:RadTreeNode>
                        </Nodes>
                    </telerik:RadTreeNode>
                </Nodes>
            </telerik:RadTreeView>
            <qsf:Footer runat="server" ID="Footer1"></qsf:Footer>
        </form>
    </body>
    </html>

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