VS 2008 - Custom Gridview Insert Row

I've created a custom gridview control with a custom datacontrolfield as well, which enabled me to have textboxes in the headercells of the gridview so I can filter each column value.

Now I've added textboxes to the footer row as well so I can allow users to insert data directly from the grid.

this is a portion of my gridview aspx code:

Code:
<FooterTemplate>
<asp:LinkButton ID="lbInsertCN" runat="server" CommandName="Insert" ValidationGroup="addCN" >Insert</asp:LinkButton>
<asp:LinkButton ID="lbCancelInsertCN" runat="server" CausesValidation="False" CommandName="Cancel" Text="Cancel" ></asp:LinkButton>

[Code] ....

As you can see, I added an Insert and Cancel button in the footer row. Then I have my custom column. Now in the rowdatabound event of the grid, i'm trying to hook up the linkbutton click event to a handler:

Code:
Protected Sub nsGrvContainer_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles nsGrvContainer.RowDataBound
Select Case e.Row.RowType
Case DataControlRowType.Footer
Dim lbInsert As LinkButton = CType(e.Row.FindControl("lbInsertCN"), LinkButton)
AddHandler lbInsert.Click, AddressOf odsContainerNumber_Inserting
End Select

I find the control fine, but the click event never fires.