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Pageload problem with AutoPostback True

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pavan asked on 25 Nov 2015, 04:29 PM

I have two rad combo boxes on my web page radcombo1 and radcombo2, when I select the radcombo1 the page reload is happening. I dont want page reload to happen I want the radcombo to show the values. i.e radcombo2 values are based on the selection of radcombo1. and also to select radcombo2 before that radcombo1 should be selected. Here i tried to implement this using the   radajaxmanager. But still the page load is happening. Need help.




<%@ Page Language="C#" AutoEventWireup="true" CodeFile="testradcombo.aspx.cs" Inherits="testradcombo" %>

<!DOCTYPE html>

<html xmlns="">
<head runat="server">

    <form id="form1" runat="server">
        <telerik:RadScriptManager ID="RadScriptManager1" runat="server"></telerik:RadScriptManager>
        <telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">
                        <telerik:AjaxSetting AjaxControlID="RadComboBox1">
                                <telerik:AjaxUpdatedControl ControlID="RadComboBox1"></telerik:AjaxUpdatedControl>
                                <telerik:AjaxUpdatedControl ControlID="RadComboBox2" LoadingPanelID="RadAjaxLoadingPanel1"></telerik:AjaxUpdatedControl>                                
        <telerik:RadAjaxLoadingPanel ID="RadAjaxLoadingPanel1" runat="server">
        <telerik:RadComboBox ID="RadComboBox1" runat="server" AutoPostBack="true">
                               <telerik:RadComboBoxItem runat="server" Text="Informational" Value="5" />
                                <telerik:RadComboBoxItem runat="server" Text="Enhancement" Value="4" />
                                <telerik:RadComboBoxItem runat="server" Text="Maintenance" Value="3" /> 
                                <telerik:RadComboBoxItem runat="server" Text="Problem" Value="2" />  
                                <telerik:RadComboBoxItem runat="server" Text="Outage" Value="1" />         
        <telerik:RadComboBox ID="RadComboBox2" runat="server">
                               <telerik:RadComboBoxItem runat="server" Text="Infor" Value="5" />
                                <telerik:RadComboBoxItem runat="server" Text="Enha" Value="4" />
                                <telerik:RadComboBoxItem runat="server" Text="Main" Value="3" /> 
                                <telerik:RadComboBoxItem runat="server" Text="Prob" Value="2" />  
                                <telerik:RadComboBoxItem runat="server" Text="Outa" Value="1" />         






code behind: testradcombo.aspx.cs


using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class testradcombo : System.Web.UI.Page
    protected void Page_Load(object sender, EventArgs e)
        if (IsPostBack)
            RadComboBox2.Visible = false;

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