select options in web dynpro application

Use of Select Options and Search Help in Webdynpro Applications

OVS Search Help use in Select Options

Debesh


Create a test Application

Give a View name and a Window name

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For using select options we use a webdynpro component called WDR_SELECT_OPTIONS which has all the select options properties predefined inside it.

In the View create a View Conatiner UI element to hold the select options component.

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Add a button a trigger a action

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Get the controller of the select options in the view

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In side window embedded the Select Options inside the view container

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Inside DOINIT of view instantiate the interface controller of the Select options to get its control

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Then initialize the select options by calling appropriate method

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Now create a range table for the select options

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Now with the standard Select Options add the Field for which select options is needed

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Now the select option for the field is ready. To test the same create an application and test it.

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Now for search help change the code for I_VALUE_HELP_TYPE ,CO_PREFIX_NONE to CO_PREFIX_OVS. Normally when we create node attribute we can provide search help in the properties. But for Select options we don’t have any predefined node so we can use OVS help here.

Now create a handler attribute for Select options and also create a handler method for the OVS

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Now to transfer select options value from one view to other, create a view attribute which refer to IF_WD_SELECT_OPTIONS. This variable will hold the select options value .We are going to export this in our outbound plug and use it in the next view to read the select option.

Here LV_VAR is a second variable for a field which we will create in the view later for a field VBTYP.

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Now create a outbound plug and and export the two variable which we are going to use in next view.

Now assign the helper reference to the handler variable.

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Fire the plug now.

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Now if you have remember we have added an variable VBTYP for that , we will create the field now in side view context

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Now create the UI element

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The following logic is for dropdown values

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Code :

method WDDOINIT . data lo_cmp_usage type ref to if_wd_component_usage. lo_cmp_usage = wd_this->wd_cpuse_sel_op( ). if lo_cmp_usage->has_active_component( ) is initial. lo_cmp_usage->create_component( ). endif. DATA lo_INTERFACECONTROLLER TYPE REF TO IWCI_WDR_SELECT_OPTIONS . lo_INTERFACECONTROLLER = wd_this->wd_cpifc_sel_op( ).

DATA lo_r_helper_class TYPE ref to if_wd_select_options.

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lo_r_helper_class = lo_interfacecontroller->init_selection_screen( )."wd_this->SEL_HANDLER data : lr_range TYPE REF TO data. CALL METHOD lo_r_helper_class->CREATE_RANGE_TABLE EXPORTING I_TYPENAME = 'VBELN'* I_LENGTH =* I_DECIMALS = RECEIVING RT_RANGE_TABLE = lr_range .

CALL METHOD lo_r_helper_class->ADD_SELECTION_FIELD EXPORTING I_ID = 'VBELN' IT_RESULT = lr_range I_READ_ONLY = ABAP_FALSE I_VALUE_HELP_TYPE = IF_WD_VALUE_HELP_HANDLER=>CO_PREFIX_OVS

." Assign the handler reference to the declared attributewd_this->SEL_HANDLER = lo_r_helper_class.

DATA lo_nd_dcat TYPE REF TO if_wd_context_node. DATA lo_nd_dcat_temp TYPE REF TO if_wd_context_node_info. DATA lo_el_dcat TYPE REF TO if_wd_context_element. DATA ls_dcat TYPE wd_this->element_dcat.* navigate from <CONTEXT> to <DCAT> via lead selection lo_nd_dcat = wd_context->get_child_node( name = wd_this->wdctx_dcat ).

data : lt_dom TYPE STANDARD TABLE OF DD07V, ls_dom like LINE OF lt_dom. CALL FUNCTION 'DDUT_DOMVALUES_GET' EXPORTING NAME = 'VBTYP' LANGU = SY-LANGU TABLES DD07V_TAB = lt_dom EXCEPTIONS ILLEGAL_INPUT = 1 OTHERS = 2. IF SY-SUBRC <> 0. MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4. else. data tab type wd_this->elements_dcat.

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data entry like line of tab. LOOP AT lt_dom INTO ls_dom. entry-vbtyp = ls_dom-ddtext. APPEND entry to tab. ENDLOOP. lo_nd_dcat->bind_table( new_items = tab ). endif.endmethod.

method YHANDLE . TYPES:BEGIN OF ty_help, vbeln TYPE vbap-vbeln, END OF ty_help. DATA: ls_help TYPE ty_help, lt_help TYPE STANDARD TABLE OF ty_help. FIELD-SYMBOLS: <lt_ovs_result> LIKE lt_help, <lhelp> LIKE LINE OF <lt_ovs_result>, <lt_sel_opt_result> TYPE STANDARD TABLE. CASE i_ovs_data-m_ovs_callback_object->phase_indicator. WHEN if_wd_ovs=>co_phase_0. "Set Configuration WHEN if_wd_ovs=>co_phase_1. "Preassign Entry Values WHEN if_wd_ovs=>co_phase_2. "Fill Value List SELECT vbeln FROM vbap INTO CORRESPONDING FIELDS OF TABLE lt_help UP TO 200 ROWS. i_ovs_data-m_ovs_callback_object->set_output_table( output = lt_help ). "Value Return WHEN if_wd_ovs=>co_phase_3. ASSIGN i_ovs_data-m_ovs_callback_object->selection->* TO <lhelp>. ASSIGN i_ovs_data-mt_selected_values->* TO <lt_sel_opt_result>. INSERT <lhelp>-vbeln INTO TABLE <lt_sel_opt_result>. WHEN OTHERS. ENDCASE.endmethod.

method ONACTIONGET_DET . data : lv_type(60) TYPE c. DATA lo_nd_dcat TYPE REF TO if_wd_context_node. DATA lo_nd_dcat_temp TYPE REF TO if_wd_context_node_info. DATA lo_el_dcat TYPE REF TO if_wd_context_element. DATA ls_dcat TYPE wd_this->element_dcat.* navigate from <CONTEXT> to <DCAT> via lead selection lo_nd_dcat = wd_context->get_child_node( name = wd_this->wdctx_dcat ).

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data : lt_dom TYPE STANDARD TABLE OF DD07V, ls_dom like LINE OF lt_dom. CALL FUNCTION 'DDUT_DOMVALUES_GET' EXPORTING NAME = 'VBTYP' LANGU = SY-LANGU TABLES DD07V_TAB = lt_dom EXCEPTIONS ILLEGAL_INPUT = 1 OTHERS = 2. IF SY-SUBRC <> 0. MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4. else. CALL METHOD LO_ND_DCAT->GET_ATTRIBUTE EXPORTING NAME = 'VBTYP' IMPORTING VALUE = lv_type .READ TABLE lt_dom INTO ls_dom with key ddtext = lv_type.IF sy-subrc IS INITIAL.wd_this->lv_var = ls_dom-DOMVALUE_L.ENDIF. endif. wd_this->fire_to_sales_plg( sel_handler = wd_this->sel_handler " ref to if_wd_select_options lv_var = wd_this->lv_var " vbtyp ).endmethod.

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Now create the next view

We handle the export parameters of the plug in the handler method of the called view

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Following is the procedure for ALV table display in webdynpro application

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Add another context.

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Design the view

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method HANDLEFROM_SELECTION .

wd_this->get_var = sel_handler. DATA: RT_DATA TYPE REF TO DATA. FIELD-SYMBOLS: <FS_DATA> TYPE TABLE. data : lt_range TYPE RANGE OF vbeln, ls_range LIKE LINE OF lt_range.

RT_DATA = WD_THIS->get_var->GET_RANGE_TABLE_OF_SEL_FIELD( I_ID = 'VBELN' ).

* Assign it to a field symbol ASSIGN RT_DATA->* TO <FS_DATA>. lt_range = <fs_data>. READ TABLE lt_range INTO ls_range INDEX 1. wd_this->vbeln_low = ls_range-low.

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wd_this->vbtype = lv_var. TYPES : BEGIN OF ty_vbap, VBELN type VBELN_VA , POSNR type POSNR_VA , MATNR type MATNR , matkl type MATWA , netwr type NETWR_AP , waerk type WAERK , werks type WERKS_EXT , lgort type LGORT_D , netpr type NETPR , END OF ty_vbap. DATA : lv_vbeln TYPE vbeln. DATA : lt_vbap TYPE TABLE OF ty_vbap. SELECT * INto CORRESPONDING FIELDS OF TABLE lt_vbap from vbak as a INNER JOIN vbap as b on a~vbeln = b~vbeln WHERE a~vbeln in lt_range and vbtyp = wd_this->VBTYPE. IF sy-subrc IS INITIAL. DATA lo_nd_sales TYPE REF TO if_wd_context_node. DATA lo_el_sales TYPE REF TO if_wd_context_element.* navigate from <CONTEXT> to <SALES> via lead selection lo_nd_sales = wd_context->get_child_node( name = wd_this->wdctx_sales ).* @TODO handle not set lead selection IF lo_nd_sales IS INITIAL. ENDIF.* get element via lead selection lo_el_sales = lo_nd_sales->get_element( ).* @TODO handle not set lead selection IF lo_el_sales IS INITIAL. ENDIF. lo_nd_sales->bind_table( lt_vbap ). ENDIF.endmethod.

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select options in web dynpro application

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