Days between now and a dataset record

hi,
i have tried to figure this out with no luck, i have a dataset with a colume (col1) with date in and colume (col2) with text.
my section should contain rows where days between now/today and the date(s) in col1. ive tried getting Datediff() to work no luck, also timestampdiff with no luck.

br
Henrik

Could you give me an example of your data and what should be displayed please?

Col1, Type = Date, Type= Value
Col2, Type = String, Type= Value

Col1,Col2
2017-01-16,Region1
2016-12-03,Region2
2016-11-29,Region3
2017-02-09,Region4

Then i need to calculate how many days between now and date in Col1