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Version Q2 2011 released 07/12/2011
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Notification / Update on interval


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  • The RadNotification in this demo is configured to update on every 3 seconds. The example simulates a scenario of checking for new messages at specified interval - if there are new messages, the notification is shown. Otherwise it does not show.

Source Code

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

    <%@ Register TagPrefix="telerik" Namespace="Telerik.Web.UI" Assembly="Telerik.Web.UI" %>
    <%@ 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" %>
    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
    <html xmlns="http://www.w3.org/1999/xhtml">
    <head runat="server">
        <qsf:HeadTag ID="Headtag1" runat="server" />
    </head>
    <body class="BODY">
        <form id="Form1" method="post" runat="server">
        <qsf:Header ID="Header1" runat="server" NavigationLanguage="c#" />
        <script type="text/javascript">

            function OnClientUpdated(sender, args) {
                var message = "Update (check) was done!";
                var newMsgs = sender.get_value();
                if (newMsgs != 0) {
                    sender.show();
                    message += (newMsgs == 1) ? (" There is 1 new message!") : (" There are " + newMsgs + " new messages!");
                }
                else {
                    message += " There are no new messages!";
                }
                logEvent(message);
            }
            
        </script>
        <telerik:RadScriptManager ID="RadScriptManager1" runat="server">
        </telerik:RadScriptManager>
        <br />
        <telerik:RadNotification ID="RadNotification1" runat="server" LoadContentOn="TimeInterval"
            Width="300" Animation="Fade" EnableRoundedCorners="true" EnableShadow="true"
            OnClientUpdated="OnClientUpdated" Title="Received messages" OffsetX="-20" OffsetY="-20"
            TitleIcon="none" UpdateInterval="3000" AutoCloseDelay="1500" OnCallbackUpdate="OnCallbackUpdate">
            <ContentTemplate>
                <asp:Literal ID="lbl" runat="server"></asp:Literal>
            </ContentTemplate>
        </telerik:RadNotification>
        <qsf:EventLogConsole ID="EventLogConsole1" runat="server" AllowClear="true" />
        <qsf:Footer runat="server" ID="Footer1" />
        </form>
    </body>
    </html>

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