Inter Component Communication

[ashish_shah]

Hi All,

I am creating an application with 2 components by referring to this thread :  http://scn.sap.com/thread/1393140

I wanted to pass data from Component 1 to Component 2 using Interface controller Node of Component 1.

However i am not able to pass data from Component 1 to 2.

Parent Component's Node declared as an interface node

Node's attribute with Default Value:

Child Component

In Parent View I have embedded Child Component's Interface View to show the values passed from Parent Component to Child.

When i am trying to pass data from Parent Component to Child Component , Child Component is able to read the default value.

However when some input is changed in parent component , that does not pass to Child Component:

Please help in passing data from parent Component to Child Component via Interface Controller node of Parent Component.

Regards,

Ashish Shah

[former_member222068]

Hi Ashish Shah,

  To pass the data between the component:

Things to be done in Comp 1:

1. Define the node as inferface node in the comp1

2. Pass data to the node ( in the component 1)

Things to be done in Comp 2:

3. Define used component( Comp 1 ) in the using component( Comp 2 ).

    In the component main page you will find a tab Used component. define reuse under component Use and name of the component ( Comp1 ) under component column.

4. Go to component controller

    Click on the controller usage and select the comp 1 from the displayed pop up

5. interface node of comp1 will be available. define External context mapping. drag and drop the node from comp1 context to comp 2 context.

6. Now Go to required view and define internal context mapping. i.e., Drag and drop the node from component controller context of comp2 to view context of comp2.

7. now the data should be available.

Note: The data will can be accessed only if you are calling the component 2 in the same session.

         if you are calling the view of comp 2 in the new session( new window or external window )        then  the data gets lost.

      if you are calling the comp 2 in the new window, then the parameters should be passed through the URL.

Regards,

Sankar Gelivi

[ashish_shah]

Hi Shankar,

Interface View of Component 2 is embaded in the Window of Component 1.

And i am trying to view the data in the application created in Parent Component. So i am expecting the data in the same session.

Still i am not getting the data in Component 2.

Do you have any other suggestion?

Regards,

Ashish Shah

[former_member222068]

Hi Ashish Shah,

   Fallow the above process you will be able to get the data. It is the right process.

Regards,
Sankar Gelivi

[ashish_shah]

I have followed exactly same steps already, you can see it in my snapshots in first post.

Attached is the nugget file of these two components (you will need to change extention of this file from "txt" to "nugg" before importing using SAP link),

can you try in your system and tell me if it works correctly.

Regards,

Ashish Shah

NUGG_WDA_PARENT_CHILD .txt.zip

[chengalarayulu]

in Show Child View action, just read the NAME attribute and again immediately set.

ex. lo_element->get_attribute(

               exporting

                         name = 'NAME'

               importing

                         value = lv_name ).

     lo_element->set_attribute(

               exporting

                    name = 'name'

                    value = lv_name ).

two steps are mandatory. check.

[ashish_shah]

Hi Chengalarayulu,

I tried your suggestion , still no luck .

Still in the child component , i am not getting data passed from Parent component.

I can share nugget file with you , you can also check in your system.

This is my ABAP Server version, if this info helps to identify the problem.

SAP_BASIS 701 0007 SAPKB70107 SAP Basis Component

Regards,

Ashish Shah

[ashish_shah]

Any Comments / Suggestions guys?

Regards,

Ashish Shah