Load on demand of radcombobox

[geetha priya]

Hi

i am using radcombobox in my page. the load on demand is working fine. 
when i click or place my cursor on the combobox it list out the items. but i want to list my items after typing 2 or 3 letters on the combobox.
how can i do this?

thanks.
geetha.

[Kalina]

Hi geetha priya,

Please use the MinFilterLength property of the RadComboBox to set the minimum length of the typed text before a new request for items is initiated.
You can test how this property works at the "Load On Demand" section of this online demo.

Best wishes,
Kalina
the Telerik team

[Nicolas]

Hi,

I think what Geetha was trying to explain, or at least that's the problem i'm experiencing right now, is that, even with the MinFilterLenght set to a value higher than zero, the ItemsRequested event is launch when the combobox is receiving the focus. My case isn't quite difficult, here's my definition of the radcombobox.

<telerik:RadComboBox ID="contractNumber" runat="server" Width="250px" Height="150px"
            EmptyMessage="Search (6 characters min)"
            EnableLoadOnDemand="True"
            EnableItemCaching="true"
            IsCaseSensitive="false"
            MinFilterLength="6"
            OnItemsRequested="ContractNumber_ItemRequested"">
        </telerik:RadComboBox>

How can I make it without raising the ItemsRequested event on focusing? Thanks.

Nic

[Kalina]

Hello Nicolas Ducharme,

Let me suggest you stop the request for items when RadComboBox is focused by handling the OnClientItemsRequesting event in this way:

<script type="text/javascript">

    function OnClientItemsRequesting(sender, eventArgs) {
        if (eventArgs.get_text().length < 6)
            eventArgs.set_cancel(true)
        else
            eventArgs.set_cancel(false);
    }

</script>

<telerik:RadComboBox ID="contractNumber"
    runat="server" Width="250px"
    Height="150px"
    OnClientItemsRequesting="OnClientItemsRequesting"
    EmptyMessage="Search (6 characters min)"
    EnableLoadOnDemand="True"
    EnableItemCaching="true"
    IsCaseSensitive="false"
    MinFilterLength="6"
    OnItemsRequested="ContractNumber_ItemRequested">
</telerik:RadComboBox>

Regards,
Kalina
the Telerik team

[improwise]

Having the exact same problem and would like this to be considered as a bug even if the workaround works, as the MinFilterLenght should make sure this don't happen, or it doesn't work, right?

[Kalina]

Hello Patrik Johansson,

This issue has been already logged for fixing.
Meanwhile please use the workaround provided here.

All the best,
Kalina
the Telerik team

[improwise]

Great, thanks for quick respons and fixing this.