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Web Dynpro for ABAP 简单SELECT OPTIONS实例

石头 8月 28, 2016 Webdynpro 9,378 views 0

先看一下效果。

创建Web Dynpro组件ZTEST_SAM_SELECT。

引用WDR_SELECT_OPTIONS组件

在View的属性中添加selectoptions

在layout中添加按钮和ViewContainerUIElement

嵌入SELECT OPTIONS视图

设置SELECT_SCREEN
在MAIN view中methods的WDDOINIT方法中添加如下代码

 DATA lo_cmp_usage TYPE REF TO if_wd_component_usage.
  lo_cmp_usage = wd_this->wd_cpuse_select_options( ).
  IF lo_cmp_usage->has_active_component( ) IS INITIAL.
    lo_cmp_usage->create_component( ).
  ELSE.
    EXIT.
  ENDIF.
*---选择屏幕的引用
  DATA lo_interfacecontroller TYPE REF TO iwci_wdr_select_options .
  lo_interfacecontroller =   wd_this->wd_cpifc_select_options( ).
  "修改SELECT_OPTIONS
  wd_this->m_handler = lo_interfacecontroller->init_selection_screen(   ).
*---设置全局信息
  CALL METHOD wd_this->m_handler->set_global_options
    EXPORTING
      i_display_btn_cancel  = abap_false
      i_display_btn_check   = abap_false
      i_display_btn_reset   = abap_false
      i_display_btn_execute = abap_false.


  DATA: lr_field TYPE REF TO data.

  DEFINE mcr_sel.
    free lr_field.
    lr_field = wd_this->m_handler->create_range_table( &1 ).
    wd_this->m_handler->add_selection_field(
      i_id = &1
      i_description = &2
      it_result = lr_field
      i_read_only = &3 ).
  END-OF-DEFINITION.

  mcr_sel 'MATNR' '物料编码' abap_false.
  mcr_sel 'MATKL' '物料组' abap_false.

DATA lo_cmp_usage TYPE REF TO if_wd_component_usage.

lo_cmp_usage = wd_this->wd_cpuse_select_options( ).

IF lo_cmp_usage->has_active_component( ) IS INITIAL.

lo_cmp_usage->create_component( ).

ELSE.

EXIT.

ENDIF.

*---选择屏幕的引用

DATA lo_interfacecontroller TYPE REF TO iwci_wdr_select_options .

lo_interfacecontroller = wd_this->wd_cpifc_select_options( ).

"修改SELECT_OPTIONS

wd_this->m_handler = lo_interfacecontroller->init_selection_screen( ).

*---设置全局信息

CALL METHOD wd_this->m_handler->set_global_options

EXPORTING

i_display_btn_cancel = abap_false

i_display_btn_check = abap_false

i_display_btn_reset = abap_false

i_display_btn_execute = abap_false.

DATA: lr_field TYPE REF TO data.

DEFINE mcr_sel.

free lr_field.

lr_field = wd_this->m_handler->create_range_table( &1 ).

wd_this->m_handler->add_selection_field(

i_id = &1

i_description = &2

it_result = lr_field

i_read_only = &3 ).

END-OF-DEFINITION.

mcr_sel 'MATNR' '物料编码' abap_false.

mcr_sel 'MATKL' '物料组' abap_false.

添加context和Table显示数据

查询和显示数据

在Button的ACTION中添加如下代码

*获取SELECT OPTIONS
  FIELD-SYMBOLS: <fs_matnr> TYPE ANY TABLE,
                 <fs_matkl> TYPE ANY TABLE.
  DATA lv_matnr TYPE matnr .          "屏幕上输入的
  DATA lv_matkl TYPE matkl .          "屏幕上输入的
  DATA:lo_data TYPE REF TO data.
  FREE lo_data.
  lo_data = wd_this->m_handler->get_range_table_of_sel_field( 'MATNR' ).
  ASSIGN lo_data->* TO <fs_matnr>.
  FREE lo_data.
  lo_data = wd_this->m_handler->get_range_table_of_sel_field( 'MATKL' ).
  ASSIGN lo_data->* TO <fs_matkl>.


*数据绑定
  DATA lo_nd_lt_mara TYPE REF TO if_wd_context_node.
  DATA lt_lt_mara TYPE wd_this->elements_lt_mara.
  lo_nd_lt_mara = wd_context->get_child_node( name = wd_this->wdctx_lt_mara ).
  SELECT * INTO TABLE lt_lt_mara FROM mara WHERE matnr IN <fs_matnr> AND matkl IN <fs_matkl>.
  lo_nd_lt_mara->bind_table( new_items = lt_lt_mara set_initial_elements = abap_true ).

*获取SELECT OPTIONS

FIELD-SYMBOLS: <fs_matnr> TYPE ANY TABLE,

<fs_matkl> TYPE ANY TABLE.

DATA lv_matnr TYPE matnr . "屏幕上输入的

DATA lv_matkl TYPE matkl . "屏幕上输入的

DATA:lo_data TYPE REF TO data.

FREE lo_data.

lo_data = wd_this->m_handler->get_range_table_of_sel_field( 'MATNR' ).

ASSIGN lo_data->* TO <fs_matnr>.

FREE lo_data.

lo_data = wd_this->m_handler->get_range_table_of_sel_field( 'MATKL' ).

ASSIGN lo_data->* TO <fs_matkl>.

*数据绑定

DATA lo_nd_lt_mara TYPE REF TO if_wd_context_node.

DATA lt_lt_mara TYPE wd_this->elements_lt_mara.

lo_nd_lt_mara = wd_context->get_child_node( name = wd_this->wdctx_lt_mara ).

SELECT * INTO TABLE lt_lt_mara FROM mara WHERE matnr IN <fs_matnr> AND matkl IN <fs_matkl>.

lo_nd_lt_mara->bind_table( new_items = lt_lt_mara set_initial_elements = abap_true ).

然后就可以测试了。

附：

获取设置节点和元素

 data:lo_nd type ref to if_wd_context_node,
       lo_el type ref to if_wd_context_element.
  data:gt_rfq type wd_this->elements_gt_rfq,
       ga_rfq type wd_this->element_gt_rfq.
*  data:lv_sptyp type zsptyp.
  data:ga_head type wd_this->element_zs_head.


  define get_node.
    free: lo_nd,lo_el.
    lo_nd = wd_context->get_child_node( &1 ).
    lo_el = lo_nd->get_element( ).
    lo_el->get_static_attributes( importing static_attributes = &2  ).
  end-of-definition.

  define set_node.
    free: lo_nd,lo_el.
    lo_nd = wd_context->get_child_node( &1 ).
    lo_el = lo_nd->get_element( ).
    lo_el->set_static_attributes( exporting static_attributes = &2  ).
  end-of-definition.

  define get_node_table.
    free: lo_nd,lo_el.
    lo_nd = wd_context->get_child_node( &1 ).
    lo_nd->get_static_attributes_table( importing table = &2  ).
  end-of-definition.

  define set_node_table.
    free: lo_nd,lo_el.
    lo_nd = wd_context->get_child_node( &1 ).
    lo_nd->bind_table( &2 ).
  end-of-definition.

  get_node_table: 'GT_RFQ' gt_rfq.