Calculations with multiple columns

[RGujjalu]

Hi, 

I have the following fields, Application, Laptop Name, Username and Date Used (Year, Month , Day)

If I wanted to work out the count for Laptop names (which are linked to Username) by application how would I go about doing this?

I can create a simple count but how do I do it by application so the report can show me the number of times a user accessed an application per month?

Measure = CALCULATE(COUNT('Table Name'[LAPTOP NAME]))

[djurecicK2]

This is called Filter Context- here is some additional information:

https://www.sqlbi.com/articles/filter-context-in-dax/

[djurecicK2 · Accepted solution]

Hi @RGujjalu ,

 Try putting that measure in a table or matrix visual along with the Application field.

[RGujjalu]

Ok thanks, that gives me what I need I think. If I wanted to created a measure for this, how would I go about doing it? I'm just trying to understand the principles behind it that's all