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WCAG 2.0 and Section 508 Accessibility Compliance

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September 2026
September 2026
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The ASP.NET AJAX Calendar 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 RadCalendar accessible by leveraging the settings for the different caption and summary properties of the rendered HTML elements.

  • DefaultVB.aspx
  • DefaultVB.aspx.vb
  • styles.css
<%@ Page CodeFile="DefaultVB.aspx.vb" Language="vb" AutoEventWireup="false" Inherits="Telerik.Web.Examples.Calendar.Functionality.Accessibility.DefaultVB" %>

<%@ Register TagPrefix="telerik" Namespace="Telerik.Web.UI" Assembly="Telerik.Web.UI" %>
<!DOCTYPE html>
<html xmlns='http://www.w3.org/1999/xhtml'>
<head runat="server">
    <title>Telerik ASP.NET Example</title>
    <link href="styles.css" rel="Stylesheet" type="text/css" />
</head>
<body>
    <form id="form1" runat="server">
    <telerik:RadScriptManager runat="server" ID="RadScriptManager1" />
    <telerik:RadSkinManager ID="RadSkinManager1" runat="server" ShowChooser="true" />
<div id="Div1" class="demo-containers" runat="server">
    <div class="demo-container" runat="server" id="containerDiv">
        
    <telerik:RadAjaxPanel ID="RadAjaxPanel1" runat="server">
        <h3>Select Dates</h3>
        <div>
            <telerik:RadCalendar RenderMode="Lightweight" ID="RadCalendar1" AutoPostBack="true" EnableKeyboardNavigation="true" EnableAriaSupport="true"
                EnableMultiSelect="false" runat="server" OnSelectionChanged="RadCalendar1_SelectionChanged">
            </telerik:RadCalendar>
        </div>
        <div class="labelWrapper">
            <asp:Label ID="Label1" runat="server" Text=""></asp:Label>
        </div>
        <br class="qsf-clear-float" />
    </telerik:RadAjaxPanel>
    
        </div>
           
    </div>
    <div>
        
        <asp:LinkButton ID="LinkButton1" runat="server" OnClick="LinkButton1_Click">Validate with WAVE</asp:LinkButton>
        
    </div>
    </form>
</body>
</html>

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