SelectedIndexChanged never Firing

[Byzza]

I'm having huge problems with the rad combo box.  I'm sure it worked once, but its not working now, and I can't seem to get it working.

Basicly on post back selectedIndexChanged and TextChanged are never firing.  init and load and ItemCreated are always being fired on postback though.

Page:

%@ Page Language="VB" MasterPageFile="~/MasterPage.master" AutoEventWireup="false"
    EnableEventValidation="false" CodeFile="Default.aspx.vb" Inherits="_Default"
    Title="Notice Board" %>
....
<%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>
<asp:Content ID="Content1" ContentPlaceHolderID="cph" runat="Server">
.....

 <telerik:RadComboBox ID="rcbCategories" runat="server" Skin="WebBlue" AutoPostBack="true"
                    AppendDataBoundItems="True" DataSourceID="sdsCategories" DataTextField="category" EnableLoadOnDemand="false"
                    DataValueField="categoryID" >
                    <CollapseAnimation Duration="200" Type="OutQuint" />
                    <Items>
                        <telerik:RadComboBoxItem Text=" All News " Value="0" />
                    </Items>
                </telerik:RadComboBox>

......

</asp:Content>

Code:

 Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

        If Not Page.IsPostBack Then
            logUser()
        End If
        If Not Page.IsPostBack Then
            Me.lblPageTitle.Text = Page.Title
        End If

    End Sub

 Protected Sub rcbCategories_Init(ByVal sender As Object, ByVal e As System.EventArgs) Handles rcbCategories.Init
 End Sub

    Protected Sub rcbCategories_ItemCreated(ByVal sender As Object, ByVal e As Telerik.Web.UI.RadComboBoxItemEventArgs) Handles rcbCategories.ItemCreated

    End Sub

    Protected Sub rcbCategories_ItemDataBound(ByVal sender As Object, ByVal e As Telerik.Web.UI.RadComboBoxItemEventArgs) Handles rcbCategories.ItemDataBound

    End Sub

    Protected Sub rcbCategories_ItemsRequested(ByVal o As Object, ByVal e As Telerik.Web.UI.RadComboBoxItemsRequestedEventArgs) Handles rcbCategories.ItemsRequested

    End Sub

    Protected Sub rcbCategories_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles rcbCategories.Load

    End Sub

    Protected Sub rcbCategories_SelectedIndexChanged(ByVal o As Object, ByVal e As Telerik.Web.UI.RadComboBoxSelectedIndexChangedEventArgs) Handles rcbCategories.SelectedIndexChanged
        If lbArchive.Text = archiveText Then
            'Me.lbArchive.Text = currentText
            Me.sdsNews.SelectCommand = "uspSelectCurrentNews"
            Me.sdsNews.DataBind()
            Me.RadGrid1.DataBind()
        Else
            'Me.lbArchive.Text = archiveText
            Me.sdsNews.SelectCommand = "uspSelectArchiveNews"
            Me.sdsNews.DataBind()
            Me.RadGrid1.DataBind()
        End If
    End Sub

Thanks in advance for any help you can offer.

Regards

[Simon]

Hello Byzza,

Generally this should not be happening.

Could you verify whether the data source is providing correct data? More specifically, do all Items have different values?

All the best,
Simon
the Telerik team

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[Byzza]

I worked out the problem was to do with: EnableEventValidation="false"     being set up the top of the page.
When I changed this to True, and fixed the other problems which caused me to set this to False in the first place the RadComboBox ended up working.  Though it is very stange that it wasn't working when it was set to false.

Is there any reason this would be the case?

[Simon]

Hi Byzza,

I tried creating a simple page with your RadComboBox definition and set EnableEventValidation to false and both SelectedIndexChanged and TextChanged events fired.

I am not sure why they are not firing at your side. If you are interested in finding out why, please send us a runnable project/web site/page where the issue could be reproduced. We will inspect it and will try to provide a solution or a workaround.

All the best,
Simon
the Telerik team

Instantly find answers to your questions on the new Telerik Support Portal.
Check out the tips for optimizing your support resource searches.

[Jairo]

I have the same problem, but the problem is that for security reason i need to have EnableEventValidation =true , and in tha case im having an exception, how could i fix this issue?  thanks

[Waseem]

My dear, you forget to add event in you Radcombobox. if you donot add your event how it is fire. please add your event.

OnClientSelectedIndexChanged="rcbCategories_SelectedIndexChanged"

Regards
Muhammad Waseem