DetailsView not binding to GridView with stored procedure

Question

I'm trying to display records in a DetailsView after I click on the record in the GridView. Everything works good if I don't use a stored procedure to populate the DetailsView, but if I try to use a SP in the DetailsView it won't display after clicking on the record in the GridView. For some reason it won't bind together with the Stored Procedure. I click on the GridView record and nothing happens. Could someone let me know what I'm doing wrong. Thanks

 

Both GridView & DetailsView have this: DataKeyNames="ShippingIdentity"

 

<asp:SqlDataSource ID="Shipping_DS" runat="server" ConnectionString="<%$ ConnectionStrings:NFIConnection %>" SelectCommand="GetShippingInfoDetailsView" SelectCommandType="StoredProcedure" >

<SelectParameters>

<asp:ControlParameter ControlID="ManageQuotesGridView" Name="ShippingIdentity" PropertyName="SelectedValue" Type="String" />

</SelectParameters>

 

 

Stored Procedure:

 

SELECT ShippingIdentity,

OrigPortDoor,

OrigPortCode,

AirExport,

OrigCity,

OrigState,

OrigZip,

OrigCountry,

DestPortDoor,

DestCity,

DestState,

DestZip,

DestCountry,

ShippingLane

FROM ShippingInfo

RETURN