ComboBox items are not accessible on the server-side when loading them on demand

[dennis]

Hi,  im trying to access to the property selectedvalue in a combobox declared in this way:

                                <telerik:RadComboBox ID="RadComboBoxFlight" runat="server"
                                    DataTextField="NU_VUEL" DataValueField="ID_VUEL_CLIE"
                                    EmptyMessage="Seleccione&nbsp;una&nbsp;aerolinea..." Height="100px"
                                    OnClientItemsRequested="ItemsLoaded"
                                    OnItemsRequested="RadComboBoxFlight_OnItemsRequested" Skin="Web20"
                                    Width="180" />

when i do postback with a button, the selectedvalue of the combobox returns an empty string, only works the text property.

 i chekc the support section of the combobox and i find this :
http://www.telerik.com/help/aspnet-ajax/load-on-demand-access-items-server-side.html and there say that selectedvalue is supported.

im using 2009 Q2..
btw i also try with loadondemand="true"

[Simon]

Hi dennis,

I have just checked the latest version and the SelectedValue property worked fine in your use case.

Could you please verify that proper data is coming from the data base, i.e. the ID_VUEL_CLIE column is not empty?

Best wishes,
Simon
the Telerik team

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[Jose]

Hi Dennis.

I found a similar issue using the ItemsRequested event, that's due the callback mode. My way to solve it was to use a separate hidden field and catch the current selected value in the OnClientSelectedIndexChanged event.

function RadComboBox1_ClientSelectedIndexChanged(sender, eventArgs)
{
   var field = $get("hiddenFieldId");
   var item = eventArgs.get_item();
   field.value = item.get_value();
}

in your code behind, just check for the value in the hidden field.

Hope this helps.
Jose Guay