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Version Q2 2011 released 07/12/2011
select

TreeList / Custom Skin

Customize RadTreeList Appearance
Change grid lines:
Category ID Product (Name, Quantity) PriceIn stockParent Category ID
123
Page size:
select
A Appetizers   
  A1 Southwestern Twisted Chips (150 gr.) $6.79A
  A2 Top Shelf Combo Appetizer (300 gr.) $9.49A
B Beverages   
  B1 Sangria (90 ml.) $6.49B

  • The demo shows how the RadTreeList control can be used with a custom non-embedded skin. If you are creating (using) a custom skin, which is based on an existing embedded skin, note that the RadTreeList uses the sprite image of the RadGrid's corresponding skin. In addition, you will need a custom skin with the same name for RadComboBox and/or RadInput and/or RadSlider, as these controls may appear in the RadTreeList pager.

Source Code

C# VB.NET
Show code in new window Demo isolation steps
  • <%@ Page Language="c#" Inherits="Telerik.TreeListExamplesCSharp.FirstLook.DefaultCS"
        CodeFile="DefaultCS.aspx.cs" %>

    <%@ Register TagPrefix="telerik" Namespace="Telerik.QuickStart" %>
    <%@ Register TagPrefix="telerik" TagName="Header" Src="~/Common/Header.ascx" %>
    <%@ Register TagPrefix="telerik" TagName="HeadTag" Src="~/Common/HeadTag.ascx" %>
    <%@ Register TagPrefix="telerik" TagName="Footer" Src="~/Common/Footer.ascx" %>
    <%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>
    <%@ Register TagPrefix="qsf" Namespace="Telerik.QuickStart" %>
    <!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">
        <telerik:HeadTag runat="server" ID="Headtag2" />
        <link href="Clear/TreeList.Clear.css" rel="stylesheet" type="text/css" />
        <link href="Clear/ComboBox.Clear.css" rel="stylesheet" type="text/css" />
    </head>
    <body class="BODY">
        <form runat="server" id="mainForm" method="post">
        <telerik:Header runat="server" ID="Header1" NavigationLanguage="CS" ShowSkinChooser="false" />
        <!-- content start -->
        <telerik:RadScriptManager ID="RadScriptManager1" runat="server" />
        <telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">
            <AjaxSettings>
                <telerik:AjaxSetting AjaxControlID="RadTreeList1">
                    <UpdatedControls>
                        <telerik:AjaxUpdatedControl ControlID="RadTreeList1" />
                    </UpdatedControls>
                </telerik:AjaxSetting>
                <telerik:AjaxSetting AjaxControlID="CheckBox1">
                    <UpdatedControls>
                        <telerik:AjaxUpdatedControl ControlID="RadTreeList1" />
                    </UpdatedControls>
                </telerik:AjaxSetting>
                <telerik:AjaxSetting AjaxControlID="CheckBox2">
                    <UpdatedControls>
                        <telerik:AjaxUpdatedControl ControlID="RadTreeList1" />
                    </UpdatedControls>
                </telerik:AjaxSetting>
                <telerik:AjaxSetting AjaxControlID="DropDownList1">
                    <UpdatedControls>
                        <telerik:AjaxUpdatedControl ControlID="RadTreeList1" />
                    </UpdatedControls>
                </telerik:AjaxSetting>
            </AjaxSettings>
        </telerik:RadAjaxManager>
        <qsf:ConfiguratorPanel runat="server" ID="ConfigurationPanel1" Title="Customize RadTreeList Appearance"
            Expanded="true">
            <table>
                <tr>
                    <td style="width: 200px">
    <asp:CheckBox ID="CheckBox1" runat="server" Text="Show outer borders" Checked="true"
    AutoPostBack="true" OnCheckedChanged="CheckBox1_CheckedChanged" />
                    </td>
                    <td style="width: 200px">
    <asp:CheckBox ID="CheckBox2" runat="server" Text="Show tree lines" Checked="true"
    AutoPostBack="true" OnCheckedChanged="CheckBox2_CheckedChanged" />
                    </td>
                    <td>
                        Change grid lines:
                        <asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="true" OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged">
                            <asp:ListItem Selected="True">Both</asp:ListItem>
                            <asp:ListItem>Horizontal</asp:ListItem>
                            <asp:ListItem>None</asp:ListItem>
                            <asp:ListItem>Vertical</asp:ListItem>
                        </asp:DropDownList>
                    </td>
                </tr>
            </table>
        </qsf:ConfiguratorPanel>
        <telerik:RadTreeList ID="RadTreeList1" runat="server" OnNeedDataSource="RadTreeList1_NeedDataSource"
            Skin="Clear" EnableEmbeddedSkins="false" ParentDataKeyNames="ParentID" DataKeyNames="ID"
            AllowPaging="true" PageSize="5" AutoGenerateColumns="false">
            <Columns>
                <telerik:TreeListBoundColumn DataField="ID" UniqueName="ID" HeaderText="Category ID" />
                <telerik:TreeListTemplateColumn UniqueName="ProductName" HeaderText="Product">
                    <HeaderTemplate>
                        Product (Name, Quantity)
                    </HeaderTemplate>
                    <ItemTemplate>
                        <%# Eval("ProductName")%><%# Eval("Quantity").ToString() != "" ? "&nbsp;(" + Eval("Quantity").ToString() + ")" : ""%>
                    </ItemTemplate>
                    <HeaderStyle Width="300px" />
                </telerik:TreeListTemplateColumn>
                <telerik:TreeListBoundColumn DataField="Price" UniqueName="Price" DataFormatString="{0:C}"
                    HeaderText="Price">
                    <ItemStyle HorizontalAlign="Right" />
                </telerik:TreeListBoundColumn>
                <telerik:TreeListCheckBoxColumn DataField="InStock" UniqueName="InStock" HeaderText="In stock">
                    <HeaderStyle Width="60px" />
                    <ItemStyle HorizontalAlign="Center" />
                </telerik:TreeListCheckBoxColumn>
                <telerik:TreeListBoundColumn DataField="ParentID" UniqueName="ParentID" HeaderText="Parent Category ID" />
            </Columns>
        </telerik:RadTreeList>
        <!-- content end -->
        <telerik:Footer runat="server" ID="Footer1" AdditionalCodeViewerFiles="~/TreeList/Examples/Appearance/CustomSkin/Clear/TreeList.Clear.css,~/TreeList/Examples/Appearance/CustomSkin/Clear/ComboBox.Clear.css">
        </telerik:Footer>
        </form>
    </body>
    </html>

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