Web Dynpro Application
SAP Developer Network Dialog Boxes in Web Dynpro Applications NW 7.1 5 Dialog Boxes in Web Dynpro Applications In this tutorial, you use a few steps to create a Web Dynpro application that uses various. The web dynpro application will be opened in a new browser tab. You have learned how to configure web dynpro applications in SAP Fiori launchpad. Please feel free to comment and let us know your feedback. Subscribe for more updates. URL of a Web Dynpro Application The URL of a Web Dynpro application is automatically generated by the system. You can find the URL of your application in the Web Dynpro Explorer on the Properties tab. The URL of a Web Dynpro application has the following structure (default configuration), whereby the following formats are possible. Antje Boehm-Peters and Razi Mateen of SAP NetWeaver Product Management provide this set of tutorials for getting started with Web Dynpro for ABAP technology.Tutorial 1 - Create a Simple Web Dynpro Application The first tutorial shows how.
Web Dynpro (WD) is a proprietary web application technology developed by SAP SE that focuses on the development of server-side business applications. One of its main design features is that the user interface is defined in an entirely declarative manner.Web Dynpro applications can be developed using either a Java (Web Dynpro for Java, WDJ or WD4J) or ABAP (Web Dynpro ABAP,[1] WDA or WD4A) flavor.
Web Dynpro is a proprietary web application technology developed by SAP SE that focuses on the development of server-side business applications. One of its main design features is that the user interface is defined in an entirely declarative manner. Web Dynpro applications can be developed using either a Java or ABAP flavor. The earliest version of Web Dynpro appeared in 2003 and was based on. Performance issues — In some cases performance issues can be experienced for a Web Dynpro Application and it is not easy to locate the root cause of the issue. This page collects some tools and methods that can be used for performance analyses of a Web Dnypro Application.
The earliest version of Web Dynpro appeared in 2003 and was based on Java. This variant was released approximately 18 months before the ABAP variant.
The Java variant of Web Dynpro experienced limited commercial success, and as of 2010, has been placed in maintenance. This means that the existing product is supported to the extent that any bugs are fixed; however, no new functionality will be added. SAP's development effort is now focused on the ABAP variant of Web Dynpro.
WD follows a design architecture based on an interpretation of the MVC design pattern and uses a model driven development approach ('minimize coding, maximize design').
The Web Dynpro Framework is a server-side runtime environment into which many dedicated 'hook methods' are available. The developer then places their own custom coding within these hook methods in order to implement the desired business functionality. These hook methods belong to one of the broad categories of either 'life-cycle' and 'round-trip'; that is, those methods that are concerned with the life-cycle of a software component (i.e. processing that takes place at start up and shut down etc.), and those methods that are concerned with processing the fixed sequence of events that take place during a client-initiated round trip to the server.
Webdyn Pro is aimed at the development of business applications that follow standardized UI principles, applications that connect to backend systems and which are scalable.
Main disadvantages[edit]
- renders improperly (or not at all) in any browser but Internet Explorer, not even in newer versions without using the compatibility view.[2]
- proprietary codebase, only operates on SAP servers
- some bundled UI elements are reproductions of standard HTML elements (e.g. drop-down menus) and do not gracefully degrade
- HTML generated by WD is neither semantic nor readily readable: many UI layout elements are combinations of deeply nested tables, divs, and spans. For example, rather than utilizing a fieldset (two elements including legend) for the Group UI element, WD recreates it with two spans surrounding a two row table with further spans, a div, and a wbr for a total of 13 elements.
- less flexible due to requirement that interface be made up of WD UI elements (i.e. custom HTML is not possible). To reduce the limitations, several measures have been taken. For example, WD supports so-called 'islands' for e.g. flash applications that enrich the Web Dynpro UI element collection by rich UI elements. This disadvantage doesn't seem so serious but in fact basic features that a user would expect cannot be implemented, e.g. colored rows in a table, colors in general, advanced alignment of simple UI elements (due to nonexistence of more complicated ones), selecting multiple rows in tree-like tables (this is due to preserving basic concept of WD) and many more. Utilizing such an island requires the developer to forgo WD UI elements within.
- rendering speed in browser for larger tables. (>1000 rows).
- Very bad performance and slow speed, maximum time the browser time out before further processing.
Main advantages[edit]
- typed access for design time checks, e.g. navigation links and messages are accessed via types instead of string keys like in JSF
- diverse services for backend access, like aRFC, JEE and Web Service data models
- integration with SAP Interactive Forms by Adobe, which are interactive PDF forms, during design (same IDE) and run time (data sharing)
- integration with business process management and business rules management (since NetWeaver CE 7.1 EHP 1)
- designed to support development of large-scale applications by adding multiple grouping layers on top of Java packages (DCs, SCs, products)
- runs on different clients e.g. web browser, mobile device, widget engine
- comes with a big collection of UI elements providing a wealth of functionality and only have to be configured but not programmed
References[edit]
- ^SAP Library - Web Dynpro for ABAP
- ^How to resolve 'Sorry, your browser/program is not supported by Web Dynpro' for IE 9.
External links[edit]
- Web Dynpro ABAP or Web Dynpro Java discussions, blogs, documents and videos on the SAP Community Network (SCN)
- SAP ABAP Tutorial
- SAP ABAP Useful Resources
- Selected Reading
Abap Dynpro
Web Dynpro (WD) for ABAP is the SAP standard user interface technology developed by SAP AG. It can be used in the development of web-based applications in the SAP ABAP environment that utilizes SAP development tools and concepts. It provides a front-end web user interface to connect directly to backend SAP R/3 systems to access data and functions for reporting.
Web Dynpro for ABAP consists of a run-time environment and a graphical development environment with specific development tools that are integrated in the ABAP Workbench (transaction: SE80).
Architecture of Web Dynpro
The following illustration shows the overall architecture of Web Dynpro −
Following are a few points to keep in mind regarding Web Dynpro −
Web Dynpro is the SAP NetWeaver programming model for user interfaces.
All Web Dynpro applications are structured as per the Model View Controller (MVC) programming model.
The model defines an interface to the main system and the Web Dynpro application can have an access to system data.
The view is responsible for showing the data in the web browser.
The controller resides between the view and the model. The controller formats the model data to be displayed in the view. It processes the user entries made by the user and returns them to the model.
Advantages
Web Dynpro offers the following advantages for application developers −
The use of graphical tools significantly reduces the implementation effort.
Reuse and better maintainability by using components.
The layout and navigation is easily changed using the Web Dynpro tools.
User interface accessibility is supported.
Full integration in the ABAP development environment.
Web Dynpro Component and Window
The component is the global unit of the Web Dynpro application project. Creating a Web Dynpro component is the initial step in developing a new Web Dynpro application. Once the component is created, it acts as a node in the Web Dynpro object list. American dynamics network client download ibm. You may create any number of component views in a component and assemble them in any number of the corresponding Web Dynpro windows.
At least one Web Dynpro window is contained in each Web Dynpro component. The Web Dynpro window embeds all the views that are displayed within the front-end web application. The window is processed in the window editors of the ABAP Workbench.
Note
Debug Web Dynpro Application
The component view displays all the administrative details for the application including the description, the name of the person who created it, the creation date, and the assigned development package.
The Web Dynpro application is the independent object in the object list of the ABAP Workbench. The interaction between the window and the application is created by the interface view of a given window.