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WCAG 2.0 and Section 508 Accessibility Compliance

  • Fuller
Validate with WAVE

Telerik RadDropDownTree for ASP.NET AJAX is compliant with Section 508 and Level AA of the WCAG 2.0 Guidelines . Run WAVE, the automated web accessibility evaluation tool, to check the accessibility level of the control yourself.

This example demonstrates how you can make Telerik's ASP.NET RadDropDownTree accessible by leveraging the settings for the different caption and summary properties of the rendered HTML elements.

The control is also visible in Windows High Contrast mode when using Simple skin.

  • DefaultVB.aspx
  • DefaultVB.aspx.vb
<%@ Page Language="vb" CodeFile="DefaultVB.aspx.vb" AutoEventWireup="false" Inherits="DropDownTree.Examples.Accessibility.DefaultVB" %>

<%@ Register TagPrefix="telerik" Namespace="Telerik.Web.UI" Assembly="Telerik.Web.UI" %>
<%@ Register TagPrefix="qsf" Namespace="Telerik.QuickStart" %>

<!DOCTYPE html>
<html xmlns='http://www.w3.org/1999/xhtml'>
<head runat="server">
    <title>Telerik ASP.NET Example</title>
</head>

<body>
    <form id="form1" runat="server">
    <telerik:RadScriptManager runat="server" ID="RadScriptManager1" />
    <telerik:RadSkinManager ID="RadSkinManager1" runat="server" ShowChooser="true" />
    <div class="demo-container size-thin">
        <telerik:RadDropDownTree RenderMode="Lightweight" ID="RadDropDownTree1" runat="server" Width="300px" 
            DefaultMessage="Please select" DataFieldID="EmployeeID" DataFieldParentID="ReportsTo" 
            DataTextField="LastName" DataSourceID="SqlDataSource1">
            <DropDownSettings/>
        </telerik:RadDropDownTree>
    </div>
    <asp:LinkButton ID="LinkButton1" runat="server" OnClick="LinkButton1_Click" CssClass="waveLink">Validate with WAVE</asp:LinkButton>
    <asp:SqlDataSource runat="server" ID="SqlDataSource1" ConnectionString="<%$ ConnectionStrings:NorthwindConnectionString %>"
        SelectCommand="SELECT * From Employees"></asp:SqlDataSource>
    </form>
</body>
</html>

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