Marco Russo and Alberto Ferrari bust out the drawing board:
The filter context is a fundamental concept to understand in order to write good DAX code. In this article, we describe the filter context using a visual approach – we rely on a graphical visualization that represents the different interactions that exist in the filter context when you use the visual elements, filters, and slicers of a report. This is the first step to plan the changes required to obtain the desired result: these changes can be obtained by using the CALCULATE function, which removes, adds, and replaces existing filters in the filter context.
This article provides a different perspective on a topic already discussed in other filter context articles: read them to get more insights about this importance concept for DAX.
Read on to learn more about how it works.