Custom webdynpro to read / write on R3 using rfc

Question

Hello all ,
I have implemented a web dynpro that retrieves data from the R/3 through an RFC , using the documentation and examples . At the beginning, there is an iView with a List, the user selects a line and then a second iView shows the line he chose in a form .
What i know need to know, is how to extend this dynpro so that the user can make some changes and then press a button eg "SAVE" and his changes pass to the R/3 .
If possible, I am looking for a "best practice", so I don't have to improvise .
Thank you in advance .

Answer 1

Overall the process remains the same whether you want to read data or post the data to R/3.
As you must have understood for retreiving data from R/3 you need a BAPI and create a model in Web Dynpro to display the data.
Now similarly to write the data you will require a BAPI which will make these changes in the backend. So
1. Create a submit BAPI which posts the data in backend and test it completely.
2. Make the BAPI Remote Fucntion Enabled.
3. Import the BAPI as model in your Web Dynpro application and make the necessary JCo connections.
4. Use elements from the rich Web Dynpro library and design your screens.
5. Create context elements to hold your input data and place a button where you create a custom action where you will implement the logic of calling the Submit BAPI.
6. Deploy the application.
You may check these tutorials
[Accessing ABAP Functions in Web Dynpro Java|http://www.sdn.sap.com/irj/scn/index?rid=/library/uuid/a00f7103-6790-2a10-ac9c-fcac7c5b18a3&overridelayout=true].
[Handling Transactions with BAPIs in Web Dynpro|http://www.sdn.sap.com/irj/scn/index?rid=/library/uuid/d352a790-0201-0010-5082-b1a608d22b6c&overridelayout=true]
Chintan