After i modified the grid, to use also a template field, the elements aren't visible any more at databind.

All the other columns are BoundDataField.

Have you met something like this? There is any solution?

<ig:BoundDataField DataFieldName="Kg" Key="Kg" Width="47px" DataType="System.Int32">
       <Header Text="Kg" />
</ig:BoundDataField>
<ig:TemplateDataField Key="Sap" Width="50px">
       <ItemTemplate>
              <asp:CheckBox ID="chkSap" runat="server" Checked='<%# DataBinder.Eval(CType(Container, Infragistics.Web.UI.TemplateContainer).DataItem, "Sap") %>' />
       </ItemTemplate>
       <Header Text="Sap" />
</ig:TemplateDataField>

Thanks,

Lidia.