Fixed Date, Dynamic Year - Date Filtering Woes

[Anonymous]

Hello!

It's me again with another date conundrum.

What I want to do is filter a range of data based on its date.  For example, I want to filter out anything from 1st April of the previous year.  So for 2020 that would be 1st April 2019 and for 2021, this would be 1st April 2020.

I can easily do this with a fixed date, but I have struggled to make this dynamic.

I have tried the following but get an error about not passing through a date value: -

#"Filtered Rows" = Table.SelectRows(#"Changed Type", each [Date] >= Date.From(Date.AddMonths(Date.StartOfYear(DateTime.LocalNow)),-9))

In my mind, I'm asking it to filter out anything that is less than equal to the start of today's year minus 9 months.  E.g. 1st April 2019.

If anyone can shed some light on this for me, I would be much obliged.

[Anonymous]

Exact error message: -

Expression.Error: The Date value must contain the Date component.
Details:
[Function]

[Greg_Deckler · Accepted solution]

@Anonymous - Try ditching your Date.From, I don't see why you need that. Also, you need () on your .LocalNow

#"Filtered Rows" = Table.SelectRows(#"Changed Type", each [Date] >= Date.AddMonths(Date.StartOfYear(DateTime.LocalNow())),-9)

[Anonymous]

Thanks, @Greg_Deckler - I always struggle with the date/datetime/datetimezone fields!

I've tried what you have suggested but now get: -

Expression.Error: 3 arguments were passed to a function which expects 2.
Details:
Pattern=
Arguments=[List]

Then I realised there were not enough brackets (or not in the right place) and get: -

Expression.Error: We cannot apply operator < to types DateTime and Date.
Details:
Operator=<
Left=01/10/2019 00:00:00
Right=21/08/2019

[Anonymous]

Ah I may have cracked it...

#"Filtered Rows" = Table.SelectRows(#"Added Conditional Column1", each [Date] >= Date.From(Date.AddMonths(Date.StartOfYear(DateTime.LocalNow()),-9)))

Converting datetime to date with the Date.From - then matches the "Date" format in [Date]