Web Dynpro for ABAP(9):Suspend Call And Enhancement

3.13Suspend and Resume Calls

在保留first application情况下，导航到second application。

示例代码:创建outbound:go_suspending,URL参数类型：String or TIHTTPNVP

URL格式：://..:/sap/bc/webdynpro/

/?=

method ONACTIONGO_SUSPENDING .

data: L_REF_MAIN_WINDOW type ref to IG_MAIN_WINDOW .

L_REF_MAIN_WINDOW =   WD_THIS->GET_MAIN_WINDOW_CTR( ).

L_REF_MAIN_WINDOW->FIRE_GO_SUSPENDING_PLG(

    URL =   'http://…………/webdynpro/sap/my_secondary_wda'  ).

endmethod.

示例代码：second application,接收resume plug

method HANDLEDEFAULT .

data: l_url_parameters typetihttpnvp.

wdevent->get_data( exporting name =if_wd_application=>all_url_parameters importing value= l_url_parameters). . .

endmethod .

3.14Modification-Free Enhancements

在不影响原有WDA Application情况下，添加增强。

1.SE80,Web Dynpro Comp,打开已有Component;

2.点击Enhance按钮；

3.创建Enhancement Implementation

4.创建additional view;

选择Views->右键->Create as Enhancement;

选择已经创建的Enhancement Implementation;

创建Views:V_ENHANCE1,可以在Component下看到文件夹：Enhancement Implementation;