Can't get a ComboBox to bind to a SqlDataSource

[paul-2011]

Hi guys, I'm trying to bind a very simple ComboBox to a SqlDataSource but it is not working, it doesn't render the ComboBox and corrupts the other controls on the page, can you please take a look at my sample code?
Thank you

<asp:SqlDataSource ID="getCSR" runat="server" ConnectionString="..." SelectCommand="SELECT ID, Display FROM CSR ORDER BY Display" ProviderName="System.Data.SqlClient">
</asp:SqlDataSource>

<ext:Store ID="StoreCSR" runat="server" DataSourceID="getCSR">
        <Reader>
                        <ext:JsonReader IDProperty="ID">
                            <Fields>
                                <ext:RecordField Name="ID" />
                                <ext:RecordField Name="Display" />
                            </Fields>
                        </ext:JsonReader>
                    </Reader>
</ext:Store>

 <ext:ComboBox ID="ComboBox1" runat="server" StoreID="StoreCSR" 
        DisplayField="Display" ValueField="ID">
    </ext:ComboBox>

[Richardt]

Hi Paul

Place AutoDataBind="true" in your combobox and see if it makes a diffirence

Richardt

[paul-2011]

Hi Paul

Place AutoDataBind="true" in your combobox and see if it makes a diffirence

Richardt

Hi Richard, I did that but nothing changed, the control doesn't get rendered, if I remove the StoreID it renders fine, the SqlDataSource has been tested with a GridView and the query is fine, I can't seem to find the problem, I'm testing on a clean and new aspx file, by using FireBug I inspected the placeholder where the ComboBox should be and this is the content:

<div style="display: inline;" id="ComboBox1_Container">

</div>

[paul-2011]

Fixed, the <ext:Store> must be placed on the aspx file before the <ext:ComboBox> that is bound to it otherwise it won't render.
Case closed.

Thanks Richardt.