Which Templated Checkboxes in an Infragistics Webdatagrid Column are Checked

This is the codebehind I use to see which templated checkboxes in an infragistics webdatagrid column are checked.

 
       private void TakeActionOnSelectedCustomers ()
        {
            if (igWdgCustomers.Rows.Count != 0)
            {
                foreach (GridRecord row in igWdgCustomers.Rows)
                {
                    CheckBox theCB = (CheckBox)row.Items[0].FindControl("cbSelect");
                        if ( theCB!= null && theCB.Checked)  
               //  check for null because footer row doesn’t have cb 
                        {
                             //  take action 
                        }
                }
            }
        }

This is the column being checked.

   <ig:TemplateDataField Key="cbSelect" width="30px">
            <Header Text=" "   />
               <ItemTemplate>
                 <asp:CheckBox ID="cbSelect" runat="server" />
                </ItemTemplate>
   </ig:TemplateDataField>  

In this case the checkbox is not databound, but it could be.

I have not found a way to use the CRUD feature of the datasource that the WebDataGrid uses to update the db value of a boolean represented by a databound checkbox.