Make custom button invisible/HIDE in alv webdynpro

Hello Expert,

i created one custom button in alv by program:-

**********************************

*     Create button for select all

**********************************

        try.

            l_o_function = l_o_config_scope->if_salv_wd_function_settings~create_function( /glb/cl_8gtpt_const_vend_aud=>cc_icon_select ).

          catch cx_sy_conversion_overflow

                cx_sy_move_cast_error.

            l_v_error = abap_true.

        endtry.

        try.

            create object l_o_button.

          catch cx_sy_create_object_error.

            l_v_error = abap_true.

        endtry.

        if l_v_error is initial and l_o_button is bound and l_o_function is bound.

          l_o_button->set_image_source( /glb/cl_8gtpt_const_vend_aud=>cc_icon_select ).

          l_o_function->set_editor( l_o_button ).

        endif.

Now i want to make this button invisible/hide depending on some condition.it means for some condition it will display and for some it will not.

Please suggest how to acheive this.

Thanks

Mahesh