Working with Advanced VDL
Several advanced techniques are available to help you gain more control over your app's functionality and performance.
Covered Topics
- Using Dynamic Attributes
Using dynamic attributes, you can set attributes on elements using the result of expressions. - Working with Image Attachments
Views can use images that originate as scenario attachments. - Hiding Content when the Result Data is Unavailable
When one or more scenarios have no results data, you can hide the content in portions of your views. - Creating Custom Extensions for Views
The language used for the code that sits behind the View Designer is extensible, and adding to it should not be complicated. - Spotting Mistakes with VDL Hints
When you are developing Views, Xpress Insight can provide feedback by flagging some classes of mistake or sub-optimal cases. - Preloading Entities
At load time, views are scanned for scenario and entity references—such references are collated and network requests for data batched together in a preload step.