首先F2找到页面对应的“组件及视图”.实现其对应视图，上下文节点里面的get v方法。
具体代码如下图：
METHOD get_v_bu. DATA l_i_ddlb TYPE bsp_wd_dropdown_table. DATA l_wa_ddlb LIKE LINE OF l_i_ddlb. DATA l_o_ddlb TYPE REF TO cl_crm_uiu_ddlb. DATA: l_i_bu TYPE STANDARD TABLE OF /sc1/t_bu, l_wa_bu TYPE /sc1/t_bu. *&---step 1、 创建视图字段属性的下拉列表对象 CREATE OBJECT l_o_ddlb EXPORTING iv_source_type = 'T'. *&---step 2、从配置表取下拉列表取值 SELECT * FROM /sc1/t_bu INTO TABLE l_i_bu. CLEAR: l_wa_ddlb. l_wa_ddlb-key = ''. l_wa_ddlb-value = ''. APPEND l_wa_ddlb TO l_i_ddlb."空行可选 LOOP AT l_i_bu INTO l_wa_bu. CLEAR: l_wa_ddlb. l_wa_ddlb-key = l_wa_bu-bucode. l_wa_ddlb-value = l_wa_bu-butxt. APPEND l_wa_ddlb TO l_i_ddlb. ENDLOOP. *&---step 4、设置下拉列表，并让该方法返回 l_o_ddlb->set_selection_table( it_selection_table = l_i_ddlb ). rv_valuehelp_descriptor = l_o_ddlb. ENDMETHOD.
