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Version Q2 2011 released 07/12/2011
select

TreeView / Add/Remove/Disable Nodes

Available actions
  • Books
    • Arts
    • Biographies
    • Children's Books
    • Computers & Internet
    • Cooking
    • History
    • Fiction
    • Mystery
    • Nonfiction
    • Romance
    • Science Fiction
    • Travel
  • Music
    • Alternative
    • Blues
    • Children's Music
    • Classical
    • Country
    • Dance
    • Folk
    • Hard Rock
    • Jazz
    • Soundtracks

  • Select a node and click a button.

Source Code

C# VB.NET
Show code in new window Demo isolation steps
  • <%@ Page AutoEventWireup="true" CodeFile="DefaultCS.aspx.cs" Inherits="Telerik.Web.Examples.TreeView.AddRemoveDisable.DefaultCS"
        Language="c#" %>

    <%@ 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 rel="stylesheet" href="styles.css" type="text/css" />
    </head>
    <body class="BODY">
        <form runat="server" id="mainForm">
            <qsf:Header runat="server" ID="Header1" NavigationLanguage="C#"></qsf:Header>
            <telerik:RadScriptManager runat="server" ID="RadScriptManager1" />
            <telerik:RadAjaxManager runat="server" ID="RadAjaxManager1">
                <AjaxSettings>
                    <telerik:AjaxSetting AjaxControlID="DisableButton">
                        <UpdatedControls>
                            <telerik:AjaxUpdatedControl ControlID="RadTreeView1" LoadingPanelID="RadAjaxLoadingPanel1" />
                        </UpdatedControls>
                    </telerik:AjaxSetting>
                    <telerik:AjaxSetting AjaxControlID="EnableAllButton">
                        <UpdatedControls>
                            <telerik:AjaxUpdatedControl ControlID="RadTreeView1" LoadingPanelID="RadAjaxLoadingPanel1" />
                        </UpdatedControls>
                    </telerik:AjaxSetting>
                    <telerik:AjaxSetting AjaxControlID="DeleteButton">
                        <UpdatedControls>
                            <telerik:AjaxUpdatedControl ControlID="RadTreeView1" LoadingPanelID="RadAjaxLoadingPanel1" />
                        </UpdatedControls>
                    </telerik:AjaxSetting>
                    <telerik:AjaxSetting AjaxControlID="AddButton">
                        <UpdatedControls>
                            <telerik:AjaxUpdatedControl ControlID="RadTreeView1" LoadingPanelID="RadAjaxLoadingPanel1" />
                        </UpdatedControls>
                    </telerik:AjaxSetting>
                </AjaxSettings>
            </telerik:RadAjaxManager>
            <telerik:RadAjaxLoadingPanel runat="server" ID="RadAjaxLoadingPanel1" />
            <qsf:ConfiguratorPanel runat="server" ID="ConfigurationPanel1" Title="Available actions" Orientation="Vertical" Expanded="true">
                <ul class="qsfexAvailableActions">
                    <li>
    <asp:Button CssClass="qsfButtonBig" ID="DisableButton" runat="server" OnClick="DisableButton_Click"
    ValidationGroup="DisableRequiresSelection" Text="Disable selected node"></asp:Button>
    <asp:RequiredFieldValidator ID="RequiredFieldValidator2" runat="server" ErrorMessage="Select a node first."
    ControlToValidate="RadTreeView1" Display="Dynamic" ValidationGroup="DisableRequiresSelection" CssClass="validator"></asp:RequiredFieldValidator>
                    </li>
                    <li>
    <asp:Button CssClass="qsfButtonBig" ID="EnableAllButton" runat="server" CausesValidation="False"
    OnClick="EnableAll_Button" Text="Enable all nodes"></asp:Button>
                    </li>
                    <li>
    <asp:Button CssClass="qsfButtonBig" ID="DeleteButton" runat="server" OnClick="DeleteButton_Click"
    ValidationGroup="DeleteRequiresSelection" Text="Delete selected node"></asp:Button>
    <asp:RequiredFieldValidator ID="RequiredFieldValidator3" runat="server" ErrorMessage="Select a node first."
    Display="Dynamic" ControlToValidate="RadTreeView1" ValidationGroup="DeleteRequiresSelection" CssClass="validator"></asp:RequiredFieldValidator>
                    </li>
                    <li>
                        <telerik:RadTextBox runat="Server" ID="NodeTextBox" EmptyMessage="Enter node text"></telerik:RadTextBox>
    <asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ErrorMessage="Text is required"
    Display="Dynamic" ControlToValidate="NodeTextBox" ValidationGroup="TextRequired" CssClass="validator"></asp:RequiredFieldValidator>
                    </li>
                    <li>
    <asp:Button CssClass="qsfButton" ID="AddButton" runat="server" OnClick="AddButton_Click"
    ValidationGroup="TextRequired" Text="Add new node"></asp:Button>
                    </li>
                </ul>
            </qsf:ConfiguratorPanel>

            <telerik:RadTreeView ID="RadTreeView1" runat="server" Height="280px" Width="300px" />
            <qsf:Footer runat="server" ID="Footer1"></qsf:Footer>
        </form>
    </body>
    </html>

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