Topic: Filter Context

        12 posts
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The definitive guide to ALLSELECTED

ALLSELECTED is a powerful function that can hide several traps. This article is an in-depth analysis of the behavior of ALLSELECTED, explaining shadow filter contexts, what they are and how they are used by ALLSELECTED.  Read more

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Context Transition and Filters in CALCULATE

This article explains how the context transition interacts with the filter arguments of a CALCULATE function in DAX. This is important in order to avoid unexpected results with complex calculations made in filter arguments.  Read more

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Using the SELECTEDVALUE function in DAX

This article describes how the SELECTEDVALUE DAX function simplifies the syntax required in many scenarios where you need to read a single value selected in the filter context.  Read more

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Context Transition and Expanded Tables

This article describes how table expansion and filter context propagation are important DAX concepts to understand and fix small glitches in DAX expressions.  Read more

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Filter Arguments in CALCULATE

A filter argument in CALCULATE is always an iterator. Finding the right granularity for it is important to control the result and the performance. This article describes the options available to create complex filters in DAX.  Read more

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Time Intelligence in Power BI Desktop

In Power BI Desktop (as of February 2016) you have to use DAX to apply calculations over dates (such as year-to-date, year-over-year, and others), but you do not have the Mark as Date Table feature. This article describes which scenarios…  Read more

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Understanding Context Transition

The context transition in DAX is the transformation of row contexts into an equivalent filter context performed by CALCULATE and CALCULATETABLE. Managing this behavior is the next step in learning DAX once you understand row context and filter context. This…  Read more