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Report a bug when using RadCaptcha in RadAjaxManager

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Captcha

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mastermehdi asked on 09 Apr 2012, 03:42 PM

Hi
I using Telerik version 2011.3.1122.40

Please run this Codes:

MasterPage.master:

<%@ Master Language="C#" AutoEventWireup="true" CodeFile="MasterPage.master.cs" Inherits="MasterPage" %>

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

<!doctype html>

<html xmlns="http://www.w3.org/1999/xhtml">

<head runat="server">

<title></title>

</head>

<body>

<form id="form1" runat="server">

<Telerik:RadScriptManager ID="scriptManager" runat="server" />

<Telerik:RadAjaxManager ID="ajaxManager" runat="server">

<AjaxSettings>

<telerik:AjaxSetting AjaxControlID="ajax">

<UpdatedControls>

<telerik:AjaxUpdatedControl ControlID="ajax" />

</UpdatedControls>

</telerik:AjaxSetting>

</AjaxSettings>

</Telerik:RadAjaxManager>

<asp:Panel ID="ajax" runat="server">

<asp:ContentPlaceHolder id="ContentPlaceHolder1" runat="server">

</asp:ContentPlaceHolder>

</asp:Panel>

</form>

</body>

</html>

Default.aspx:

<%@ Page Title="" Language="C#" MasterPageFile="~/MasterPage.master" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>

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

<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">

<telerik:RadCaptcha ID="captcha" Runat="server"

CaptchaLinkButtonText="refresh"

EnableRefreshImage="true">

</telerik:RadCaptcha>

</asp:Content>

when I click on refresh link, RadCaptcha will be hidden!

1 Answer, 1 is accepted

Accepted

answered on 10 Apr 2012, 02:56 PM

Hi Mehdi,

Updating a RadCaptcha control via a RadAjaxManager when its refresh functionality is activated is not a supported scenario. This is because RadCaptcha uses an UpdatePanel to refresh its code and it is not recommended to update the same part of a page with UpdatePanel and RadAjaxManager.

You can utilize an UpdatePanel instead of a RadAjaxManager, although there still could be problems in some cases as nesting UpdatePanels is not a good practice.

All the best,
Slav
the Telerik team

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