Load On Demand, Empty combo

[Jocelyn]

Hi,

I am trying to understand why my combo box is always empty in the ItemRequested event eventhough I have some items in my Combo... My Event is similair to the load on demand demo. My combo works fine for the client, my problem is on the server, it is empty.

So why?

[Shinu]

Hi Jocelyn,

I tried to reproduce your issue, but no avail. Here is the sample code that I tried which worked as expected.

ASPX:

<telerik:RadComboBox ID="RadComboBox3" runat="server" Width="250px" Height="150px" EmptyMessage="Select a Company" EnableLoadOnDemand="True" ShowMoreResultsBox="true"EnableVirtualScrolling="true" OnItemsRequested="RadComboBox3_ItemsRequested">
    <Items>
       <telerik:RadComboBoxItem Text="RadComboBoxItem" />
       <telerik:RadComboBoxItem Text="RadComboBoxItem" />
       <telerik:RadComboBoxItem Text="RadComboBoxItem" />
       <telerik:RadComboBoxItem Text="RadComboBoxItem" />
       <telerik:RadComboBoxItem Text="RadComboBoxItem" />
       <telerik:RadComboBoxItem Text="RadComboBoxItem" />
       <telerik:RadComboBoxItem Text="RadComboBoxItem" />
       <telerik:RadComboBoxItem Text="RadComboBoxItem" />
       <telerik:RadComboBoxItem Text="RadComboBoxItem" />
    </Items>
</telerik:RadComboBox>

C#:

protected void RadComboBox3_ItemsRequested(object sender, Telerik.Web.UI.RadComboBoxItemsRequestedEventArgs e)
    {
        int s = RadComboBox3.Items.Count;
    }

Please provide your code if it doesn't helps.

Thanks,
Shinu.

[Kalina]

Hello Jocelyn,

The RadComboBox items loaded on demand using the ItemsRequested event handler or WebService do not exist on the server.
Please find more details about this topic at this help article.

All the best,
Kalina
the Telerik team

[Jocelyn]

I'll see what I can do client-side

Thank you Kalina.