When I click on button how to filter data only for ARTICLES based on Type(Dimension) for tablebox?

[Srikanth]

Hi All,

I have a button with navigation(Name: Articles) and table box with excel data which I attached with the measure as Sum(pageviews).

When I click on button only type (ARTICLES) should be filtered(I created  variable vType with no value) 

The last column is to measure value Sum(Pageviews)- Page Views

Thanks in Advance