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Virtual Scrolling Duplicates Data loaded on demand

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ComboBox
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Josh Sudbury
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Josh Sudbury asked on 06 Aug 2010, 03:29 PM
Hello,

I have a radcombobox that is loading data using a webservice, and the data all appears the way it should. However with virtual scrolling enabled when I scroll the data in the list is duplicated repeatedly, ad infinitum.

Disabling virtual scrolling solves this issue but that seems like the wrong solution in our particular case.

Any input would be greatly appreciated.

Thanks!

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Cori
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answered on 06 Aug 2010, 05:11 PM
Hello Josh,

What does you ItemsRequested event look like?
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Josh Sudbury
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answered on 06 Aug 2010, 06:00 PM
<script type="text/javascript">
    function OnClientItemsRequesting(sender, eventArgs) {
        var context = eventArgs.get_context();
        context["GroupId"] = $('#<%= groupId.ClientID %>').attr('groupId');
    }
</script>
 
 
<telerik:RadComboBox ID="ddlOwnerList" runat="server" Width="250px" Height="150px"
 EmptyMessage="Enter First Name or Last Name or Email" EnableLoadOnDemand="true"
 ShowMoreResultsBox="true" EnableVirtualScrolling="true" AppendDataBoundItems="false"   OnClientItemsRequesting="OnClientItemsRequesting">
<WebServiceSettings Method="GetPossibleGroupOwners" Path="../../Services/ProcessService.asmx" />
</telerik:RadComboBox>

Perhaps this will shed some more light. Sorry I should have posted it initially.

I added the AppendDataBoundItems="False" hoping that it would resolve the issue but it did not.

When scrolling in the drop down the data items are appended and repeated over and over again.
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Yana
Telerik team
answered on 10 Aug 2010, 06:56 AM
Hello Josh,

We had similar issue before, but it's fixed in the latest release. Which version of the controls you're using?

Best regards,
Yana
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Josh Sudbury
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Cori
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Josh Sudbury
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Yana
Telerik team
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