Dropdownlist selected index not working

Posted by Community Admin on 15-Mar-2012 00:00

Hello everyone,
I got an serious issure on my way to developing sitefinity. My dropdownlist selected index change event not working in sitefinity. While i use same code in normal page without integrating with sitefinity it works perfect. i have made usercontrol for my dropdown.
Plese suggest me the correct way.
Thanks in advance.

Posted by Community Admin on 15-Mar-2012 00:00

Dear Nrv
Having the same problem. When debugging it seems the value of the RadCombobox comes up empty

Here is my code. I actually do fill the RadCombobox from a Module from SF which does display the values correct. Since it did not work I tried with adding the heise.de link hardcoded but the e.value comes up empty as well.

protected void RadComboBox1_SelectedIndexChanged(object sender, Telerik.Web.UI.RadComboBoxSelectedIndexChangedEventArgs e)

Response.Redirect(e.Value, true);

protected void RadComboBox1_DataBound(object sender, EventArgs e)

var combo = (RadComboBox)sender;

combo.Items.Insert(0, new RadComboBoxItem("Heise.de", "http://www.heise.de"));

combo.Items.Insert(0, new RadComboBoxItem("Quicklinks", string.Empty));

Markus

PS: I have a ticket open. If I get some feedback I let you know.

Posted by Community Admin on 13-May-2013 00:00

Markus, were you able to figure this out back then? I'm having the same issue but in the newer releases and i'm not sure what is going on. Any advise is appreciated! Thanks.

Posted by Community Admin on 13-May-2013 00:00

Dear Sharlyne

Sorry for not posting back as promissed.

I wrote in my Ticket: I did start the whole thing again and now its working. Sometimes it simply the best to delete and start new.

If I remember correct I started over and it worked then. Go figure.

Here is the code of my module. Users can simply add links with a sortvalue in a module which will be displayed on a page as dropdown (Quicklinks) on the right side http://www.golf-winterberg.ch It might help some:

<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="QuickLinks.ascx.cs" Inherits="SitefinityWebApp.UserControls.QuickLinks" %>

<telerik:RadComboBox ID="RadComboBox2" runat="server"

DataTextField="Beschreibung" DataValueField="SeitenURL" AutoPostBack="true"

Width="250px" onselectedindexchanged="RadComboBox2_SelectedIndexChanged" OnDataBound="RadComboBox2_DataBound" >

</telerik:RadComboBox>

Code behind

using System;

using System.Linq;

using Telerik.OpenAccess;

using Telerik.Sitefinity.DynamicModules;

using Telerik.Sitefinity.Data.Linq.Dynamic;

using Telerik.Sitefinity.Utilities.TypeConverters;

using Telerik.Sitefinity.GenericContent.Model;

using Telerik.Web.UI;

using Telerik.Sitefinity.Model;

using System.Web;

using System.Web.UI;

namespace SitefinityWebApp.UserControls

public partial class QuickLinks : System.Web.UI.UserControl

protected void Page_Load(object sender, EventArgs e)

if (!Page.IsPostBack )

RetrieveCollectionOfQuicklinks();

public void RetrieveCollectionOfQuicklinks()

DynamicModuleManager dynamicModuleManager = DynamicModuleManager.GetManager();

Type quicklinkType = TypeResolutionService.ResolveType("Telerik.Sitefinity.DynamicTypes.Model.Quicklinks.Quicklink");

// This is how we get the collection of Quicklink items

var myCollection = dynamicModuleManager.GetDataItems(quicklinkType).Where(item => item.Status == ContentLifecycleStatus.Live).OrderBy(i => i.FieldValue<

decimal>("Sortierung"));

// At this point myCollection contains the items from type quicklinkType

RadComboBox2.DataSource = myCollection;

RadComboBox2.DataBind();

protected void RadComboBox2_DataBound(object sender, EventArgs e)

var combo = (RadComboBox)sender;

combo.Items.Insert(0, new RadComboBoxItem("Quicklinks", string.Empty));

protected void RadComboBox2_SelectedIndexChanged(object sender, RadComboBoxSelectedIndexChangedEventArgs e)

Response.Redirect(e.Value, true);

Posted by Community Admin on 24-Jun-2013 00:00

Thanks Markus for posting back. I did finally figure it out as well. For other people, you should also try making sure the page has "viewstate" enabled. After I changed it my drop boxes worked. I was using SF5.2.

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