I'm new to Telerik controls but I have done quite a bit of development with ASP.NET AJAX Toolkit. I tried creating a page with a RadGrid and a LoadingPanel and the LoadingPanel would never display. So I tried to simplify things and figure out how all these pieces work. I created a new, clean Telerik website project in VS 2008. I pasted in the LoadingPanel code from the Telerik demos and ran it. No LoadingPanel displayed there either. What am I doing wrong?
// Default.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="Default" %>
<!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">
<title></title>
<telerik:RadStyleSheetManager id="RadStyleSheetManager1" runat="server" />
</head>
<body>
<form id="form1" runat="server">
<telerik:RadScriptManager ID="RadScriptManager1" runat="server">
<Scripts>
<%--Needed for JavaScript IntelliSense in VS2010--%>
<%--For VS2008 replace RadScriptManager with ScriptManager--%>
<asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.Core.js" />
<asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.jQuery.js" />
<asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.jQueryInclude.js" />
</Scripts>
</telerik:RadScriptManager>
<script type="text/javascript">
//Put your JavaScript code here.
</script>
<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">
<AjaxSettings>
<telerik:AjaxSetting AjaxControlID="Panel1">
<UpdatedControls>
<telerik:AjaxUpdatedControl ControlID="Panel1" LoadingPanelID="RadAjaxLoadingPanel1" />
</UpdatedControls>
</telerik:AjaxSetting>
</AjaxSettings>
</telerik:RadAjaxManager>
<div>
<asp:Panel ID="Panel1" runat="server" HorizontalAlign="Center" Height="275px">
<asp:Button ID="Button1" runat="server" Text="Click to see the loading image" OnClick="Button1_Click"
Style="margin-top: 15px; margin-left: 15px" />
</asp:Panel>
<telerik:RadAjaxLoadingPanel ID="RadAjaxLoadingPanel1" runat="server">
</telerik:RadAjaxLoadingPanel>
</div>
</form>
</body>
</html>
// Default.aspx.cs
using System;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Configuration;
using System.Web.Security;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using Telerik.Web.UI;
public partial class Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Button1_Click(object sender, EventArgs e)
{
//simulate longer page load
System.Threading.Thread.Sleep(2000);
}
}