Nested View Tamplate and user control

[Avi]

Hi,
I am using RadGrid which contains Nested View Tamplate, inside the template I have a user control.
My problem is that I can't figure out how pass parameters from the template to the user control.

I tried this:

<NestedViewSettings DataSourceID="SqlDataSource2">
                    <ParentTableRelation>
                       <telerik:GridRelationFields DetailKeyField="ID" MasterKeyField="ID" />
                    </ParentTableRelation>
                </NestedViewSettings>
                <NestedViewTemplate>
                    <asp:Label ID="Label3" runat="server" Text='<%#Bind("ID") %>' ></asp:Label>
                    <asp:Label ID="Label1" runat="server" Text='<%#Bind("source") %>' ></asp:Label>
                    <ap:activityPanel source='<%#Bind("source") %>' jobId="123" ID="activityPanel" runat="server" Visible="true" />
</NestedViewTemplate>

Both Labels holds the correct text, but the public variable "source" inside the "activityPanel" user control remains null.

How can I resolve this?
Thanks

[Avi]

well, I think I found a different approach, I'm using "EditFormSettings" instead.