Background: How can SAP handle the wide variety of UI technologies? And how can we make them compatible from the user's point of view?
At SAP, we developed common design principles for the various UI technologies, a set of design rules for the look and feel of UI building blocks, governance processes for the available set of controls, standard rules for how to customize and brand user interfaces with style sheets, and more. Together, these activities are referred to as Unified Rendering.
Unified Rendering (UR) also called Lightspeed is the basis HTML framework consumed by Web Dynpro ABAP, Web Dynpro JAVA and SAP GUI for HTML. Unified Rendering (Lightspeed, UR, URLS) is the current new rendering technology that is generally supported for all important browser-based user interfaces that have been delivered by SAP. This new technology improves the performance of rendering and holds together all different platforms, browsers and web applications.
Unified Rendering updates for Web Dynpro ABAP are delivered with the TCI process as transports attached to notes. The cumulative patches for Unified Rendering contain corrections for UI artifacts you might encounter in browsers, as well as contain the support for the latest browser releases.
After a SAP Netweaver/Portal update, various rendering issues with dropdowns (i.e. combobox) in Web Dynpro applications:
Dropdown options is disappear/missing
Dropdown options displays in other place
Dropdown options can not be selected
Dropdown Scroll is missing
Dropdown Scroll does not work
Dropdown arrowkeys does not work
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