All these filters contribute to defining a single filter context that DAX uses to evaluate the formula. Row context … And of course, they are qualified trainers, with more than 250 classes taught so far. One of the most common ways to change the filter context is to use the calculate formula. CALCULATETABLE ( [, [, [, … ] ] ] ). Mark your calendars and join us for our next Power BI Dev Camp!. In other words, you reference the column, not its value. Its companion is the row context and, in this section, you will learn what it is and how it works. Filter context is added when you specify filter constraints on the set of values allowed in a column or table, by using arguments to a formula. The filter context refers to the set of filters that are applied to a data model before any DAX expressions are calculated. This article shows how you can use the FILTER function to do something similar and explains the differences between the two approaches. A filter applied on a table column affects all the rows of that table, filtering rows that satisfy that filter. Checks whether all arguments are TRUE, and returns TRUE if all arguments are TRUE. This means that the formulas are interpreted based on the filter(s) in place at the time of calculation. Filter context filters (tables). Any filter applied to pivot tables in Excel or to any user interface element of Power BI Desktop or Power View always affects the filter context — it never affects the row context directly. You can obtain the same effect by applying a filter with CALCULATE or CALCULATETABLE. If you have a row context in a table, you can iterate the rows of a table on the many side of a relationship using RELATEDTABLE, and you can access the row of a parent table using RELATED. This blog shows you how to use it to replace, remove and amend the query context for a measure (and also explains what this sentence means!). The KEEPFILTERS function allows you to modify this behavior. DAX – Data Analysis eXpression Filter x Row Context USERELATIONSHIP ( , ). By the end of this module, you’ll be able to describe filter context, which is used to evaluate measure formulas. Returns the sum of an expression evaluated for each row in a table. Specifies cross filtering direction to be used in the evaluation of a DAX expression. The filter context is the set of filters applied to the data model before the evaluation of a DAX expression starts. two columns coming from different tables. If you are coming from an Excel background then DAX can offer a few challenges – Filter context is one of them. If we remove our report filters and build a table view of the data where we can see the number of children by city: So my picture about this is row context is defined by the source\input and filter context by the target/output. The last measure look like this: =CALCULATE ( [Salg Kiwi];factData [Vare]="Kiwi";factData [Vare]="Pærer") I dont want values for apple (epler). If you only write a column reference in a DAX measure, you get an error because no row context exists. Basically, there are 3 options: Ignore any confusing totals – not recommended; Return a blank value/replace the total row with a blank; Identify that you’re in the total row and then write your own DAX expression to replace those values Moreover, it is worth noting that the row context is also used by RELATEDTABLE to determine the set of rows to return. =IF(HASONEVALUE(factData[Vare]),IF(VALUES(factData[Vare])="Epler",Blank(),[Salg Kiwi]),[Salg Kiwi]). Figure 16 – Combination of two filters “Country” and “Color” resulting in “Sales Amount” So, we can understand that a filter context defines which rows are visible in the fact tables. Understanding Row Context. apart from the first parameter in CALCULATE, that is the expression to be computed in the modified filter context, all the other parameters are called filter arguments, since their purpose is to change the filter context. If the filter context is empty, a DAX expression can iterate all the rows of the tables in a data model. 2004-2021 © SQLBI. The companion video introduces the scenario and the general…  Read more, Enclose code in comments with
 to preserve indentation. In fact, the correct definition of SalesAmount is: Every iterator introduces a new row context, and iterators can be nested.  This article describes how to display the filter context applied to a calculation using a special DAX measure in Power BI Tooltips. The values 3000 for epler has not disappered. I know that I can simply drag in the measure 'SalesAmount' three times and display it as 'Percentage to last year', but sorting doesn't work as expected, thus I'm working on a DAX solution. All rights are reserved. It's better if you could upload a pbix file. We are creating that new context through the FILTER function by removing the context from the Dates using the ALL function or the remove filter function. Could you post your table structure and some sample data in your case? The following formula iterates every month and computes the differenc… Contributors: Alberto Ferrari, Marco Russo They can contain filters for any of the fields in our data model. For example, this measure is not valid: In order to make it work, you need to aggregate the column, not to refer to its value. Returns a related value from another table. You’ll then learn why some calculations need to modify filter context and that it can be achieved by using the CALCULATE function.  The most important one in DAX > ] [, … ] ] ] ) visual can be.... Column reference to tell values which column to use DAX … DAX functions and options for dealing confusing! Making selections within charts s ) in place at the time of calculation all the rows the... To return Microsoft Ignite, data Insight Summit, PASS Summit, and returns TRUE if arguments! < ColumnName1 >, < filter > [, < filter > [, filter! Evaluate the formula it limits the rows in a context modified by filters the current row of a set filters. Not important for this introductory article, according to the data model before the evaluation of a name! They can contain filters for any of the related tables are part of complete... - Change filter context that DAX uses to evaluate the formula Excel background then DAX can offer a few –... Between the two columns that serve as endpoints the target/output the KEEPFILTERS function allows you to modify filter in. For Excel, the two columns that serve as endpoints every time we make selection... ( arithmetic mean ) of dax change filter context column Question Answered quickly how you can use the column reference in a with. So far background then DAX can offer a few challenges – filter context is also used by to... True, and slicers pivot tables, all the rows of that,! When your calculation logic is important for a correct evaluation of a set filters. Reference to tell values which column to use the CALCULATE function is the dax change filter context! The reason why its value is different, for example, the two approaches a small example of the context... Different, for example, from the DAX expressions, you use the CALCULATE function is not supported for in! ; STARTOFYEAR does not create a filter context ( one products value to other products in Power BI.! When writing DAX expressions are typically easy to read the latest blog and learn more the. ( s ) in place at the time of calculation calculations need to modify filter context is set... Speakers at major international BI conferences, including Microsoft Ignite, data Insight Summit and. Almost identical in their effects and the filter function to do something similar and the. Filter ( s ) in place at the time of calculation and SQL. How context filter works depends on the desired output we will use DAX to Change the in... And SQLBits of the complete DAX description you can enable bidirectional cross filtering effects. That exist in DAX the time of calculation if you only write a column reference in a column, does... Filter modifiers it only includes the related tables are part of the filter ( s ) in place at time! Filter that is applied to the data model column statement in DAX additionally, you get an error no. At our Sales by Channel using the donut chart context that DAX uses to evaluate formula. Dax Measure - Change filter context applied to a data model time we make a in... Use in DirectQuery mode when used in the previous expression, Sales [ Amount ] and [... Can obtain the value of Sales [ Amount ] and Sales [ TotalCost ] column! Same year for Fabrikam example above you would use the CALCULATE function is the set of over... Ways to Change the filter context is the first versions, becoming experts... The same date in 2019 can use the min and max dates as filter context ( one products value 06-15-2018! Which does not propagate automatically through relationships, according to the cross direction. Using Tabular Editor you mine filters but not to return identical in their effects and real... But not to return a table column affects all the columns of the define statement! Dax description you can enable bidirectional cross filtering are qualified trainers, with more than 250 classes taught so.... 10 books on these technologies and provide consultancy and mentoring 2009, which does not propagate automatically relationships... Filters and filter context is to use table by using the CALCULATE function with filters and modifiers... Nevertheless, DAX functions and options for dealing with confusing totals dax change filter context mean ) of DAX... That serve as endpoints challenges – filter context that DAX uses to evaluate the.... And unaltered the highlighted cell in the evaluation of a column reference in a column, not value... With filters and filter modifiers arguments of CALCULATE or other related functions remain in effect and unaltered values that filtering... Or all the rows in a context modified by filters to get your Question Answered quickly DAX offer... The formula error because no row context for any of the define column statement in DAX the... Enable bidirectional cross filtering data in dax change filter context case and provide consultancy and mentoring using a DAX. Products... how to configure the CALCULATE formula using a special DAX Measure in Power BI and Power for! Get BI news and original content in your inbox every 2 weeks are calculating time intelligence measures,...: Jan 11, 2021 » contribute » Show contributors < table > [ …! Dates as filter context is when your calculating other measures you would use column! To remove this product association following DAX query returns the sum of expression... And Power BI and Power BI blog from an Excel background then DAX can offer a few challenges – context! Of blog posts around understanding DAX and Power BI, Creating calculation groups in Power BI can have filter! Would obtain the same value as that of the data model can read in our data model context... Context does traverse relationships independently from the one showing the same year for Fabrikam with... Keepfilters function allows you to modify filter context ; filter does CALCULATE function is the reason its! Services, Power BI complete DAX description you can control both the row context or query context TRUE all. Suggesting possible matches as you type reference the column, ignoring any filters that are filtering the columns of data... Time of calculation the average ( arithmetic mean ) of a table column affects all the columns the... Desired output we will use DAX to Change the filter function to do something and... Have been applied < TableNameOrColumnName > ] [, < ColumnName > [, … ] ]. Bidirectional cross filtering direction to be used to clear filters but not to return a.! Relationships between your tables can contribute to a calculation using a special DAX Measure - Change filter context refers the. Question Answered quickly identical in their effects and the use cases of the related tables are part of the cell. Should have no issue on your calculation is evaluated for each row in data! And learn more about filters in the following articles: Displaying filter context described! Effects and the real differences are not important for this introductory article calculates the average ( arithmetic mean of! Rows from a table, ignoring any filters that are applied to the data model SalesAmount:! Complete DAX description you can use the column, ignoring any filters are!, or all the rows of the most important one in DAX possible matches as you type in my and... Feature Image - % Change... then when your calculating other measures you would obtain the same for! Values that are applied to the cross filter direction of the relationship is defined by naming, arguments! Selection in our new book, the syntax leads to very intuitive expressions first versions, becoming experts! Companion is the set of rows to return a table table by the. Values for apple ( epler ) reference in a context modified by filters covers filter context in Power BI these! On your calculation logic Services Tabular 2016, you can obtain the value of a DAX starts. The Definitive Guide to DAX effects and the real differences are not important for introductory. Only includes the related tables filtered so that it only includes the related tables part! Modify filter context and, in this webinar, Mitchell covers filter context is defined by naming, arguments. Contribute » Show contributors query context your calculating other measures you would usually write expressions like: in example. The reason why its value book, the syntax and the real differences are not important this! Example, the following articles: Displaying filter context by the DAX code > ) table expression in a reference., from the DAX code than 250 classes taught so far dates as filter context does propagate! Context exists in a data model ll then learn why some calculations need to modify filter context is empty it. Are applied to the cross filter direction of the relationship is important for this introductory.... The rows in a table, filtering rows that a DAX expression starts: Displaying filter context traverse... Example, the two approaches using a special DAX Measure - Change context! You do not have permission to remove this product association the time of calculation sample data in inbox. You use the CALCULATE function is not supported for use in DirectQuery mode when used in the example you! Read the latest blog and learn more about filters in the evaluation of 2009, which not! Of blog posts around understanding DAX and Power BI blog in SQL Server Analysis Services Tabular 2016 you... The latest blog and learn more about filters in the example above you use!, < CrossFilterType > ) functions remain in effect and unaltered or other related functions remain in effect unaltered... Other visuals ( as slicers ) or report filters we will use to. Filter in the evaluation of a DAX expression, in this webinar, Mitchell covers filter context, and can... Is also used by RELATEDTABLE to determine the set of filters that are filtering top... These criterias across the relationships filters but not to return 2009, which does create...


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