wda學(xué)習(xí)案例13使用message

1、使用message功能：初始界面點(diǎn)第一個(gè)按鈕，出現(xiàn)text類型的msg點(diǎn)第一個(gè)按鈕，出現(xiàn)exception類型的msg點(diǎn)第三個(gè)按鈕，出現(xiàn)t100類型的msg二實(shí)現(xiàn)1.創(chuàng)建web dynpro。 2.在main view的layout tab中添加node點(diǎn)擊add attribute from structure 添加如下：3.在layout tab中添加以下UI.最后的圖如下：4.text類型的message，在ONACTIONBTN_TEXT中加入如下代碼：methodONACTIONBTN_TEXT.data:lo_nodetypereftoif_wd_context_node,lo_e

2、lemtypereftoif_wd_context_element,ls_contexttypewd_this-element_flights,lr_controllertypereftoif_wd_controller,lr_msg_managertypereftoif_wd_message_manager,lr_msgtypestring,lt_paratypewdr_name_value_list,ls_paratypewdr_name_value.*getselectedelementlo_node=wd_context-get_child_node(Name=FLIGHTS).lo_

3、elem=lo_node-get_element().lo_elem-get_static_attributes(importingstatic_attributes=ls_context).*msgmanagerlr_controller?=wd_this-wd_get_api().callmethodlr_controller-get_message_managerreceivingmessage_manager=lr_msg_manager.*showmessageifls_context-carrid=01andls_context-connid=01.lr_msg=yourinput

4、data:carrid&1,connid&2,arenotright!.parametersls_para-name=1.ls_para-value=ls_context-carrid.appendls_paratolt_para.ls_para-name=2.ls_para-value=ls_context-connid.appendls_paratolt_para.reportmessagecallmethodlr_msg_manager-report_attribute_error_messageexportingmessage_text=lr_msgelement=lo_elematt

5、ribute_name=carridparams=lt_para.endif.wd_this-fire_to_result_plg().endmethod.5.exception類型的msgmethodONACTIONBTN_EXCEPTION.data:lo_exceptiontypereftozcx_exception.DATA:lo_nodetypereftoif_wd_context_node,lo_elemtypereftoif_wd_context_element,ls_contexttypewd_this-element_flights,lr_controllertypereft

6、oif_wd_controller,lr_msg_managertypereftoif_wd_message_manager,lw_msgtypestring,lt_paratypewdr_name_value_list,ls_paratypewdr_name_value.*getselectedelementlo_node=wd_context-get_child_node(Name=FLIGHTS).lo_elem=lo_node-get_element().lo_elem-get_static_attributes(importingstatic_attributes=ls_contex

7、t).*msgmanagerlr_controller?=wd_this-wd_get_api().callmethodlr_controller-get_message_managerreceivingmessage_manager=lr_msg_manager.*showmessagetry.ifls_context-carrid=01andls_context-connid=01.raiseexceptiontypezcx_exceptionexportingtextid=zcx_exception=no_data.endif.catchzcx_exceptionintolo_excep

8、tion.reportmessagecallmethodlr_msg_manager-report_attribute_exceptionexportingmessage_object=lo_exceptionelement=lo_elemattribute_name=carrid.endtry.wd_this-fire_to_result_plg().endmethod.6.用se24進(jìn)入創(chuàng)建zcx_exception.7.t100類型的msgmethodONACTIONBTN_T100.data:ls_msgtypesymsg.data:lo_nodetypereftoif_wd_cont

9、ext_node,lo_elemtypereftoif_wd_context_element,ls_contexttypewd_this-element_flights,lr_controllertypereftoif_wd_controller,lr_msg_managertypereftoif_wd_message_manager,lw_msgtypestring,lt_paratypewdr_name_value_list,ls_paratypewdr_name_value.*getselectedelementlo_node=wd_context-get_child_node(Name

10、=FLIGHTS).lo_elem=lo_node-get_element().lo_elem-get_static_attributes(importingstatic_attributes=ls_context).*msgmanagerlr_controller?=wd_this-wd_get_api().callmethodlr_controller-get_message_managerreceivingmessage_manager=lr_msg_manager.*showmessageifls_context-carrid=01andls_context-connid=01.definemsgls_msg-msgid=ztest1.ls_msg-msgno=001.ls_msg-msgty=E.ls_msg-msgv1=ls_context-carrid.ls_msg-msgv2=ls_context-connid.showmessagecallmethodlr_msg_manager-repor