Amsterdam, NLDebugging DAX variables using TOJSON and TOCSV
Marco Russo & Alberto FerrariThis article describes how to use the TOJSON and TOCSV functions to inspect the content of intermediate table variables when debugging a DAX measure. Read more
Understanding DATEADD parameters with calendar-based time intelligence
The new calendar-based time intelligence functions offer greater flexibility than the classic time intelligence functions. This article describes the DATEADD parameters for controlling different granularity shifts. Read more
Mar 30-Apr 1 - Houston
May 5-7 - Copenhagen
Video Training
Introducing DAX Video CourseFree
Show transaction details on the matrix visual in Power BI
This article shows how to create a DAX measure that displays information from multiple columns in a business entity or transaction, into a single column of a matrix. Read more
Fixing the “Black Icons” issue in Power BI Desktop: understanding the problem and a temporary workaround
Marco RussoIn mid-January 2026, many Power BI Desktop users began noticing a strange visual regression: several icons in the interface—including the Data, Model, and DAX icons—appeared as solid black shapes instead of their normal outlines. The issue appeared suddenly, even on… Read more
DAX Patterns
Cumulative total
The cumulative total pattern allows you to perform calculations such as running totals You can use it to implement warehouse stock and balance sheet calculations using the original transactions instead of using snapshots of data over time For example in… More on DAX Patterns
Microsoft Press
The Definitive Guide to DAX, Third Edition
The Definitive Guide to DAX is an authoritative resource for mastering the DAX language, which is pivotal for creating measures for semantic models in Microsoft Power BI, Fabric, Analysis Services, and Excel.
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