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Update Label text within RadWindow from code behind

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Window

This is a migrated thread and some comments may be shown as answers.

Ben asked on 28 May 2012, 12:27 PM

I have a RadWindow with a content template containing 3 labels. The window is displayed on Button click, but the labels do not update in the RadWindow, instead they keep thier default value. Any help would be great!

Code is a as follows: -

ASPX Page

<telerik:RadWindowManager ID="RadWindowManager1" runat="server"

EnableShadow="True" KeepInScreenBounds="True" Behaviors="Close, Reload"

Modal="True" ReloadOnShow="True" VisibleStatusbar="False">

<Windows>

<telerik:RadWindow ID="winRegisterSum" runat="server">

<ContentTemplate>

<br />

<asp:Label ID="Label2" runat="server" Text="Submit register with the following:"></asp:Label>

<br /><br />

<asp:Label ID="lblPresents" runat="server" Text="Presents"></asp:Label>

<br />

<asp:Label ID="lblAbsents" runat="server" Text="Presents"></asp:Label>

<br />

<asp:Label ID="lblLates" runat="server" Text="Presents"></asp:Label>

<br /><br />

<asp:Button ID="btnConfirm" runat="server" Text="Confirm" CssClass="defaultButton" OnClick="btnConfirm_Click"/>

</ContentTemplate>

</telerik:RadWindow>

</Windows>

</telerik:RadWindowManager>

Code Behind

Label lblPresents = winRegisterSum.ContentContainer.FindControl("lblPresents") as Label;

Label lblAbsents = winRegisterSum.ContentContainer.FindControl("lblAbsents") as Label;

Label lblLates = winRegisterSum.ContentContainer.FindControl("lblLates") as Label;

lblPresents.Text = "New Label";

lblAbsents.Text = "New Label";

lblLates.Text = "New Label"

string script = "function f(){$find(\"" + winRegisterSum.ClientID + "\").show(); Sys.Application.remove_load(f);}Sys.Application.add_load(f);";

ScriptManager.RegisterStartupScript(Page, Page.GetType(), "key", script, true);

4 Answers, 1 is accepted

Accepted

answered on 29 May 2012, 07:49 PM

Ben:

I'd suggest that you reference the How to Use RadWindow with AJAX documentation page for insights on your requirement.

You can wrap the ContentTemplate with an <asp:UpdatePanel> that will refresh the label values when the "Confirm" button is clicked, as follows:

Default.aspx:

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="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">

//script goes here

</script>

<div>

<telerik:RadWindow runat="server" ID="winRegisterSum" VisibleOnPageLoad="true">

<ContentTemplate>

<asp:UpdatePanel ID="Updatepanel1" runat="server" UpdateMode="Conditional">

<ContentTemplate>

<br />

<asp:Label ID="Label2" runat="server" Text="Submit register with the following:">

</asp:Label>

<br />

<asp:Label ID="lblPresents" runat="server" Text="Presents"></asp:Label>

<br />

<asp:Label ID="lblAbsents" runat="server" Text="Presents"></asp:Label>

<br />

<asp:Label ID="lblLates" runat="server" Text="Presents"></asp:Label>

<br />

<asp:Button ID="btnConfirm" runat="server" Text="Confirm" CssClass="defaultButton"

OnClick="btnConfirm_Click" />

</ContentTemplate>

</asp:UpdatePanel>

</ContentTemplate>

</telerik:RadWindow>

</div>

</form>

</body>

</html>

Default.aspx.cs:

using System;

using System.Web;

using System.Web.UI;

using Telerik.Web.UI;

public partial class Default : System.Web.UI.Page

{

protected void btnConfirm_Click(object sender, EventArgs e)

{

lblPresents.Text = "New Label";

lblAbsents.Text = "New Label";

lblLates.Text = "New Label";

}

See this in action at http://screencast.com/t/qfmiIvYd

Hope this helps!