what to do if date field is Null, but code does not recognize this ACCESS 2010

I have an unbound form where one of the date fields is optional.  However, in the code, it inputs #12:00:00 AM# as the value.  I can't set it to Null nor "" as this is for text.  So, if a date field on a form is optional, how can I text for this in the vba.  If it does not have a value, I want to run one DoCmd, and if it does have a date, run a different DoCmd.
Sandra SmithRetiredAsked:
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Kelvin SparksCommented:
It seems strange that you cannot use a NULL. A NULL datetime column is quite valid in Access. I can understand a "" as a zero length string would not be a valid value in a datetime, but NULL is.

You would need to ensure that there's no default values set for it

Scott McDaniel (Microsoft Access MVP - EE MVE )Infotrakker SoftwareCommented:
You should be able to test using Nz:

if Nz(Me.YourTextBox) Then
  '/ run code
  '/ run code
End If
Gustav BrockCIOCommented:
It doesn't input #12:00:00 AM#. That's just the zero value of a date/time variable.

You can check for a date input with IsDate:

If IsDate(Me!txtDate.Value) Then
    ' Do something.
    ' Do something else.
End If


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Rey Obrero (Capricorn1)Commented:
you can also use

if me.textbox & ""="" then
  'run code for no date value
 'run code with date value
end if
Sandra SmithRetiredAuthor Commented:
Checking for date worked, I could not get anything related to text strings to do what I wanted, but this seems, so far, to run.
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