Error: Sys.InvalidOperationException: '_lodIsAutomatic' is not a property or an existing field.

[Reuven]

No idea what I'm doing wrong, but whenever I enable enableautomaticloadondemand, I get this error:

Line: 3747
Error: Sys.InvalidOperationException: '_lodIsAutomatic' is not a property or an existing field.

My code:

   <telerik:RadComboBox ID="RadComboBoxProviders" Runat="server" height="200px" EnableAutomaticLoadOnDemand="true"
        DataSourceID="LinqDataSourceProviders" DataTextField="Name" EmptyMessage="Select Provider" ItemsPerRequest="10" EnableVirtualScrolling="true"
        DataValueField="ProviderId" Skin="Web20">
    </telerik:RadComboBox>

<asp:LinqDataSource ID="LinqDataSourceProviders" runat="server" ContextTypeName="ClinicalDataContext"
    EntityTypeName="" Select="new (Name, Street1, City, State, ProviderId)" TableName="ExternalProviders">
</asp:LinqDataSource>

[Kalina]

Hello Reuven,

Let me suggest you download our latest Telerik.Web.UI (2010.2.826) version and test the RadComboBox behaviour again.

Regards,
Kalina
the Telerik team

[Dan]

I've run into this same error using the 4.0 version of the Web.UI controls version 2010.2.713.40.  Although this code worked properly when I coded it in a prior 3.5  version of the controls.

Was this a bug in the RadComboBox 4.0 control that has since been fixed?

Thanks,
Dan

[Dan]

I installed the Q3 2010 RadControls, and this fixed the problem.  Yeah!

Dan