![web dynpro select options web dynpro select options](https://blogs.sap.com/wp-content/uploads/2018/04/blog_variants_code_wiz-1.jpg)
However, If the node is absolutely specific to only one view, it can be defined in the View Controller.
![web dynpro select options web dynpro select options](https://abap101.com/wp-content/uploads/2014/06/web-dynpro-select-options-44-900x238.png)
This again depends on the requirement: If the node is going to be accessed in multiple views, it should be declared at the Component Controller level. Question 10: At design time how do you decide whether to declare a node in the Component Controller or in the View Controller? However, If the node is absolutely specific to only one view, it can be defined in the View Controller In such a scenario, you can create one or more custom controllers and modularize or segregate the logic into separate parts using Custom Controller. When your Component Controller grows big in size ( say more than 10-15 views and corresponding context nodes, methods, events, event handlers etc), it might become tough to handle everything in the Component Controller. re-using views/methods/nodes of one WD component in another. Interface Controller would generally come into picture when you are doing component usage of some sort in web dynpro i.e. Interface Controller is created by default when a webdynpro component is created. other webdynpro components), we make use of Interface controller. Whenever we want views, nodes or methods of a particular web dynpro component to be available to other the outside world ( i.e. Question 3: What is an Interface Controller? It controls the entire activity of your Web Dynpro Component. It is like a Global or Top Include for you program. It is the backbone of your Web Dypro Component. Question 2: What is Component Controller?Ĭomponent Controller is the King of all Controllers. The types of controllers are listed in the screenshot below: Question 1: What are the types of Controllers in Web Dynpro ABAP? The controller formats the model data to be displayed in the view, processes the user entries made by the user, and returns them to the model. The controller lies between the view and the model. View is used to define a client neutral visualization of the business data The view is responsible for the representation of the data in the browser. In other words, the Web Dynpro application doesn’t need to concern with the specific communication technology required to interact with the back end system. Its kind of act as a proxy that detaches the Web Dynpro application from the data and functionality found in the remote system. The model forms the interface to back end system and it enables the Web Dynpro application access to data.
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Than we activate all objects and test our applicationĮvery Web Dynpro application is structured according to the Model View Controllerprogramming model Than again right click on the webdynpro component we created initially and create the web dynpro application by entering our desired name and give its descriptionĨ. Than we create binding for our table with relevant node and enable binding for all context attributes by activating all checkboxesħ. Than we create User Interface element for context node under ROOTUIELEMENTCONTAINERĦ. Add attributes from structure and give the name of desired tableĥ. Create a context node in view controller by opening corresponding context menu.Ĥ.
![web dynpro select options web dynpro select options](https://abap101.com/wp-content/uploads/2014/06/web-dynpro-select-options-10.png)
Open view editor and switch to tab ‘Context’. Create a view and assign the view to windowģ. Posted on JUpdated on JanuWeb Dynpro Questions and Answersġ.Go to Se80 and select web dynpro from dropdown and enter name of webdynpro component and description, select type as web dynpro componentĢ.