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Microsoft Power BI Cookbook

You're reading from   Microsoft Power BI Cookbook Gain expertise in Power BI with over 90 hands-on recipes, tips, and use cases

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Product type Paperback
Published in Sep 2021
Publisher Packt
ISBN-13 9781801813044
Length 656 pages
Edition 2nd Edition
Languages
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Authors (2):
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Greg Deckler Greg Deckler
Author Profile Icon Greg Deckler
Greg Deckler
Brett Powell Brett Powell
Author Profile Icon Brett Powell
Brett Powell
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Toc

Table of Contents (16) Chapters Close

Preface 1. Configuring Power BI Tools 2. Accessing and Retrieving Data FREE CHAPTER 3. Building a Power BI Data Model 4. Authoring Power BI Reports 5. Working in the Service 6. Getting Serious with Date Intelligence 7. Parameterizing Power BI Solutions 8. Implementing Dynamic User-Based Visibility in Power BI 9. Applying Advanced Analytics and Custom Visuals 10. Administering and Monitoring Power BI 11. Enhancing and Optimizing Existing Power BI Solutions 12. Deploying and Distributing Power BI Content 13. Integrating Power BI with Other Applications 14. Other Book You May Enjoy
15. Index

Capturing Current User Context

The foundation of dynamic user security and visibility in Power BI is the ability to extract the user principal name (UPN) or login credential of the business user connected to content in the Power BI service. The USERPRINCIPALNAME DAX function retrieves this text value and thus enables filter expressions to be applied to the tables of a model in security roles. In addition to RLS roles, which override and impact all DAX measures of a dataset, the UPN or "current user" text value can be used by DAX measures to retrieve the UPN prefix and suffix, or filter other measures.

In this recipe, DAX measures are added to a data model to dynamically retrieve the UPN as well as the UPN's prefix and suffix. Additional detail on authentication in Power BI and the USERNAME function, an alternative dynamic DAX function that also retrieves the UPN in the Power BI service, is also covered.

Getting ready

To prepare for this recipe, follow these...

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