Problem with date filter in MS Access 2010

I am having a nightmare trying to get a date filter to work. I have a date field with a date picker that sets a value I then use the following to try and filter records for the specified date

strMailDate = Format(Me.MailDate, "dd/mm/yyyy")

Me.Filter = "[DateSent] = " & strMailDate
Me.FilterOn = True

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Can anyone tell me what I am missing. If I put a MsgBox in to check the value of strMailDate it appears to show the correct value. However, the filter does not work. If however I use

Me.Filter = "[DateSent] = Date()"
Me.FilterOn = True

Then it does return the correct records. I suspect this is some sort of formatting issue. I need to pass a value from a date field set by a date picker to the filter.
martmacAsked:
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PatHartmanConnect With a Mentor Commented:
When you Format() a date, you convert it to a string.  That makes it NOT a date.  Formatting is for humans, not computers.  Never Format() a date when you are using it for sorting or to compare to another date.

The reason that the filter is not working is probably because the MailDate includes time.  If you used Now() to set the value for MailDate, you may want to switch to using Date() which is only the date part without time.

You can use DateValue(MailDate) to extract only the date portion or you can use a range selection -- MailDate >= SomeDate And MailDate < SomeDate + 1

Check the table definition to ensure that MailDate is in fact defined as a date.
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Rgonzo1971Commented:
Hi,

pls try

Me.Filter = "[DateSent] = " & "#" & strMailDate & "#"

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Regards
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martmacAuthor Commented:
Sadly no joy

strMailDate = Me.MailDate
MsgBox strMailDate

Me.Filter = "[DateSent] = " & "#" & strMailDate & "#"
Me.FilterOn = True

Open in new window


The MsgBox is giving me the correct value which appears also to be formatted correctly.
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aikimarkCommented:
try the mm/dd/yyyy format in your filter
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Rgonzo1971Commented:
Hi,
pls try

strMailDate = Format(Me.MailDate, "\#mm\/dd\/yyyy\#" )

Me.Filter = "[DateSent] = " & strMailDate
Me.FilterOn = True 

Open in new window

Regards
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martmacAuthor Commented:
Type mismatch in line 1
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Rgonzo1971Commented:
then try

strMailDate = Format(Me.MailDate, "mm/dd/yyyy" )

Me.Filter = "[DateSent] = " & "#" & strMailDate & "#"
Me.FilterOn = True 

Open in new window

Regards
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Carl TawnSystems and Integration DeveloperCommented:
I'd always convert to UTC format to avoid an ambiguity in date formats:
    Dim filter As String
    filter = Format(Me.MailDate, "yyyy-MM-dd")

    Me.Filter = "[DateSent]=#" & filter & "#"
    Me.FilterOn = True

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martmacAuthor Commented:
Very helpful as it goes to the root of the problem. Back end is SQL server and the problem is coming from the date format at the back end.
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