Custom AutoFilter to Compare Due Dates to Current Date

[Cristina]

Column D of my spreadsheet contains due dates. I need a macro that will
activate the Custom AutoFilter and compare the due dates to the current date.
The macro should then display only those entries where the due date is less
than or equal to the current date.

I tried using
=TODAY()
in the Custom AutoFilter dialog box. However, the system does not retrieve
any "hits."

In searching this forum, I came across the following code:

& CLng(Date)

and used it in my macro as follows:

Sub ApplyDateStatusFilter()
' Filters by Due Date (displays any entry that matches current date or any
date prior to current date)
Selection.AutoFilter Field:=4, Criteria1:="<=" & CLng(Date), Operator:=xlAnd
End Sub

The macro works -- but I don't understand what the

& CLng(Date)

does in the macro. Can someone help? Is there a better/different way to
achieve the desired result?

Thank you!!

Cristina

 

[Dave Peterson]

Ron de Bruin sent me this message in a private email a few months ago:

See also Stephen his Autofilter notes in this PDF
http://www.oaltd.co.uk/ExcelProgRef/Ch22/ProgRefCh22.htm

The AutoFilter method of a Range object is a very curious beast. We are forced
to pass it strings for its filter criteria and hence must be aware of its string
handling behaviour. The criteria string consists of an operator (=, >, <, >=
etc.) followed by a value. If no operator is specified, the "=" operator is
assumed. The key issue is that when using the "=" operator, AutoFilter performs
a textual match, while using any other operator results in a match by value.
This gives us problems when trying to locate exact matches for dates and
numbers. If we use "=", Excel matches on the text that is displayed in the cell,
i.e. the formatted number. As the text displayed in a cell will change with
different regional settings and Windows language version, it is impossible for
us to create a criteria string that will locate an exact match in all locales.

There is a workaround for this problem. When using any of the other filter
criteria, Excel plays by the rules and interprets the criteria string according
to US formats. Hence, a search criterion of ">=02/01/2001" will find all dates
on or after 1st Feb, 2001, in all locales. We can use this to match an exact
date by using two AutoFilter criteria. The following code will give an exact
match on 1st Feb, 2001 and will work in any locale:


Range("A1200").AutoFilter 2, ">=02/01/2001", xlAnd, "<=02/01/2001"