need two pages selop an alv (as result)

[Former Member]

Hi,

I have created a little WebDynpro-Application.

There are a lot of select-options-fields.

The requirement is to show the result which will be displayed within ALV table

on the next page. Briefly I need to pages. First page contains the select-options fields

and the second page must contain the ALV. How can I implement this requirement

whether the output will be shown on the second page. Do I need plugs ?

If so how does it work generally and what is about data transmission between those

two views. One Pgae has only SelOptions and the other one has the ALV in it.

Regards

sas

[ramasamy_kumar · Accepted solution]

I would suggest you to create two Trays,

One tray for keeping the select options

Second tray is for showing the ALV output.

When press Execute which is supposed to be under Tray one on the select options, if it has values then collapse the tray and expand the ALV output Tray and do vise versa.

Hope this helps.

Cheers,

Kumar

[Former Member · Accepted solution]

hi,

why trays ? Are there other approachs ? With plugs a.s.

bye

sas

[Former Member · Accepted solution]

Hello Erdem ,

you can achieve the functionality by creating the plugs and creating the ALV data node at

component controller level . Perform the following steps .

1. Create an inbound plug ( say INPLUG_1 ) and an outbound plug ( Say OUTPLUG_1 ) for view1 ( select option view ) .

2. Create an inbound plug ( say INPLUG_2 ) and an outbound plug ( Say OUTPLUG_2 ) for view2 ( ALV view )

3 . embed both the view into main window .

4. create navigation link between OUTPLUG_1<--->INPLUG_2 .... and between OUTPLUG_2<>INPLUG_1.

5.Create the data node for ALV at component controller level and Map it to the view1 and view2 both . ( I hope , you know how to implement an ALV ) .

6. On the action handler of Execute ( or Start Search ) read the select option and retrieve the ALV data

and bind it to ALV data node in your component controller. And then fire the plug OUTPLUG_1 to move to view 2..

7 . Create the back button in the view2 . In action handler of button . Fire the plug OUTPLUG_2 to go back to the first view .

i hope this will solve your problem .

Regards

Vivek

PS: please provide the points if answer is helpful .

[Former Member · Accepted solution]

ABAP Web Dynpro is not like the traditional ABAP where you would have the pages concept. If you have ALV then you will see the scrolls but not pages. So there are many options how your issue will besolved, some of them is already mentioned in the thread. One more option is create 2 flags as an attribute say 'visibility' as flag(char1 field). And then bind this to first group or viewUIelement to visible property, and the 2nd to ALV. Then set is as 'X' or space vice virsa when press the search button. e.g on search make flag1 = '' and flag2 = 'X' and then call the set_attribute method. So by doing this when you will press the search button select options will be dissapeared and alv will be displayed. You can do the same for going back to see the select options.

By this way you can acheive this by sitting in one view.

Hope it works.

[ramasamy_kumar]

Please go through my WIKI

https://wiki.sdn.sap.com/wiki/x/QICmAw

Let me know if you still have problem with it.

Add as many WDR_SELECT_OPTIONS in the webdynpro components

Map the WDR_SELECT_OPTIONS in the View,

then follow the similar procedure of how you do it for one select option.

Follow the blog for how to create one select option

Procedure is the same for one select option or multiple.

Cheers,

Kumar

[Former Member]

Hello Joshi,

I have created an application based on this tutorial.

https://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/media/uuid/39c54fe7-0b01-0010-0eb6-d63ac2bdd6...

And now after your last posting all what I did was I have copyied the Main View and

passed a new name and created navigation links between them according to your

instruction.

If I run this application and klick on search button I get error message:

Note 

The following error text was processed in the system E56 : Access via 'NULL' object reference not possible. 
The error occurred on the application server apssap13_E56_00 and in the work process 0 . 
The termination type was: RABAX_STATE 
The ABAP call stack was: 
Method: WDDOINIT of program /1BCWDY/4JZAQK4KUMPQVIA7OUFX==CP
Method: IF_WDR_VIEW_DELEGATE~WD_DO_INIT of program /1BCWDY/4JZAQK4KUMPQVIA7OUFX==CP
Method: DO_INIT of program CL_WDR_DELEGATING_VIEW========CP
Method: INIT_CONTROLLER of program CL_WDR_CONTROLLER=============CP
Method: INIT_CONTROLLER of program CL_WDR_VIEW===================CP
Method: INIT of program CL_WDR_CONTROLLER=============CP
Method: GET_VIEW of program CL_WDR_VIEW_MANAGER===========CP
Method: BIND_ROOT of program CL_WDR_VIEW_MANAGER===========CP
Method: IF_WDR_VIEW_MANAGER~MAKE_VISIBLE of program CL_WDR_VIEW_MANAGER===========CP
Method: PERFORM_NAVIGATION of program CL_WDR_CLIENT_APPLICATION=====CP