Application of Context Programming and Data Binding 

Purpose

You will use the example of sales orders to show you how to display business data in the view of a Web Dynpro application in two tables (for customer data and the corresponding order data). For this purpose, you should be familiar with fundamental parts of the Web Dynpro runtime environment like controller context, data binding, and the Web Dynpro programming model.

Features

You will learn how to:

·        Declare an extended context structure, including a subnode. In this context structure, the data sets of multiple customers and their orders are stored at runtime

·        Insert a subnode of the type non-singleton in the context structure

·        Fill tables with data sets that are stored in the controller context using data binding

·        Implement a supply function to fill a subnode with node elements

Process Flow

The development process involves the following:

·        Description of the master detail viewer application

·        Specification of the project structure

·        Context design in the master detail viewer

·        Layout design of a view

·        Data binding between tables and controller context of a View

·        Controller implementation of a view

¡        Demo business object layer

¡        Context initialization

¡        Implementation of a supply function

 First, get to know the application scenario that is to be used in the master detail viewer.