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Ajaxified multicolumn Combobox with checkbox fires a full refresh on checkbox click

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ComboBox

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

Ashwin Kumar asked on 08 Mar 2011, 08:43 PM

Hi,

I am currently using the Q3 2010 NET40 version of the ajax controls, and I am trying ot have a multi column combobox with checkboxes fire off an ajax request to refresh a grid on the same page. But no matter what I do, when I click on the checkbox, a full page refresh is fired, making it impossible for the user to click on multiple checkboxes. I already did everything that was recommended by the below support link - although am not sure if its still applicable to this version.

http://www.telerik.com/help/aspnet-ajax/troubleshooting-ajaxified-control-item-template-full-postback.html

I built a separate page with almost no code behind just to simulate the issue, with a datasource that brings data from my database. The code is as below

I am currently developing for one of your clients, and I can get the support details if need be. Please advise how I can ajaxify the checkbox, multi column combobox. Your early response would be highly appreciated.

Thank you.

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="ManageData.aspx.cs" Inherits="MasterDataManagementSystem.ManageData" %>

<!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>

<style type="text/css">

.rcbHeader ul,

.rcbFooter ul,

.rcbItem ul, .rcbHovered ul, .rcbDisabled ul

{

width: 100%;

display: inline-block;

margin: 1;

padding: 0;

list-style-type: none;

font-family : Verdana;

font-size:8pt;

}

.rcbColumn

{

font-family:Verdana;

font-size:8pt;

float: left;

margin: 1;

line-height: 14px;

padding: 2px 5px 2px 0;

}

.rcbColumn li

{

vertical-align:middle;

}

</style>

</head>

<body>

<telerik:RadScriptBlock ID="RadScriptBlock1" runat="server">

<script type="text/javascript">

<!--

function stopPropogation(e) {

e.cancelBubble = true;

if (e.stopPropagation) {

e.stopPropagation();

}

function callAttachDropDown() {

var combo = $find("<%= rcbSourceElement.ClientID %>");

combo.attachDropDown();

}

-->

</script>

</telerik:RadScriptBlock>

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

<div>

<asp:ScriptManager ID="ScriptManager1" runat="server">

</asp:ScriptManager>

<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">

<AjaxSettings>

<telerik:AjaxSetting AjaxControlID="RadComboBox1">

<UpdatedControls>

<telerik:AjaxUpdatedControl ControlID="RadGrid1" />

</UpdatedControls>

</telerik:AjaxSetting>

</AjaxSettings>

</telerik:RadAjaxManager>

<telerik:RadAjaxLoadingPanel ID="RadAjaxLoadingPanel1" Runat="server"

Skin="Default">

</telerik:RadAjaxLoadingPanel>

<telerik:RadComboBox ID="rcbSourceElement" runat="server"

HighlightTemplatedItems="True" DataTextField="PrimaryFieldValue" AutoPostBack="true"

Width="400px" Height="200px" DataValueField="ELEMENT_VALUE_KEY" DataSourceID="odsSourceElement"

AllowCustomText="True" EmptyMessage="Choose an option here...">

<ItemTemplate>

<div onclick="stopPropagation(event)">

<asp:CheckBox ID="chkSourceElementValue" runat="server" AutoPostBack="true" onclick="callAttachDropDown()" Text='<%# Eval("PrimaryFieldValue") %>'

oncheckedchanged="chkSourceElementValue_CheckedChanged"/>

</div>

</ItemTemplate>

</telerik:RadComboBox>

<asp:ObjectDataSource ID="odsSourceElement" runat="server"

SelectMethod="GetSourceElementValuesForDisplayInSubjectTab"

TypeName="MasterDataMgmt.BL.Helper">

<SelectParameters>

<asp:Parameter Name="TargetSubjectKey" DefaultValue="1" Type="Int32" />

</SelectParameters>

</asp:ObjectDataSource>

<telerik:RadGrid ID="RadGrid1" runat="server">

</telerik:RadGrid>

</div>

</form>

</body>

</html>

Thank you.

2 Answers, 1 is accepted

answered on 16 Mar 2011, 04:58 PM

example.zip

Hello Ashwin,

I've already replied to your support ticket, but I'm also attaching here a sample page with the desired functionality implemented.

All the best,
Dimitar Terziev
the Telerik team

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