Add Item to RadComboBox

[Neelima]

Hi,

I followed the below blog post to load items from WCF Service.
http://blogs.telerik.com/veselinvasilev/posts/09-04-08/how-to-use-wcf-services-with-asp-net-ajax-databound-controls.aspx

I need to add an item 'Primary' to this Combobox. Also I dont want this item to be filtered out based on the CustomText the user types in.
This item always needs to be there in the ComboBox.

Any suggestions ???


Thank you for your help,
Neelima

[Ivana]

Hi Neelima,

The idea of load on demand mechanism is to load the items when needed. You could however do the following to make your scenario work. You could add an item to RadComboBox items collection as it is shown in the code below:

<telerik:RadComboBox runat="server" ID="RadComboBox1" Height="100px"
    EnableLoadOnDemand="true" ShowMoreResultsBox="true" EnableVirtualScrolling="true"
    EmptyMessage="Type here ..." AppendDataBoundItems="true">
    <Items>
        <telerik:RadComboBoxItem Text="item1" />
    </Items>
    <WebServiceSettings Path="ComboBoxWcfService.svc" Method="LoadData" />
</telerik:RadComboBox>

When loading of items against the typed text in the input area will take place the initially added item "item1" will be removed. To overcome this behavior, you could make some modifications in the LoadData method and add a default item every time a new set of items is requested.

I hope this helps.

Greetings,
Ivana
the Telerik team