Video: Add Google Charts based on a database query to web applications in Delphi Rio (1/3)
The end result will look like this:
Student numbers will be grouped by zip code. Users are able to click on the bars and drill-down all the schools in that area (master-detail).
The first video covers:
- Looking at the database
- Build the database query for the chart
- Convert database query into URL
- Add service method to XData web service for charting
The next video will show you how to build the web application that consumes the data. Finally, the last video adds the user-interaction with the popup-window. Look out for these parts, they will be published soon.
The first video is available here: