MS Access SQL If Then statement for check boxes

Question

I am trying to get a search query to run. It is as follows. The last two lines of code do not work. It is a check box. If the checkboxYes is checked then pull only the items in the YES/NO field of the database that are checked. If the checkboxNo is checked then pull only the items in the YEs/No field of the database that are checked. If BOTH boxes are checked, then pull all items. I cannot get either scenario to work. All other fields except the check boxes work correctly.

 SELECT *
 FROM NLog
 Where
(([Forms]![FrmSearch]![Combo13] is Null) OR ((NLog.State)=[Forms]![FrmSearch]![Combo13])) and

(([Forms]![FrmSearch]![daterecsrt] is Null) or (((NLog.DateRec) Between [Forms]![FrmSearch]![daterecsrt] And [Forms]![FrmSearch]![daterecend]))) and

(([Forms]![FrmSearch]![datesrttxt3] is Null) or (((NLog.DateRec) Between [Forms]![FrmSearch]![datesrttxt3] And [Forms]![FrmSearch]![dateendtxt3]))) and

(([Forms]![FrmSearch]![checkyes] is Null) or  ((NLog.Compchk)=True)) and

(([Forms]![FrmSearch]![checkNo] is Null) or  ((NLog.Compchk)=False)) 

Thank you!

I am using MS Acess 2010. This is using the boxes on a form to run the query.

Answer 1

NLog is a table so why are you referencing fields in the table as [Forms]![FrmSearch]![Combo13] and etc. Those are controls on a form and not fields in your table. Shouldn't your query really be:

SELECT * FROM NLog WHERE
(NLog.State is Null OR NLog.State = Forms!FrmSearch!Combo13)
AND (NLog.DateRec is Null OR NLog.DateRec Between Forms!FrmSearch!daterecsrt And Forms!FrmSearch!daterecend
AND (NLog.DateRec is Null OR NLog.DateRec Between Forms!FrmSearch!datesrttxt3 And Forms!FrmSearch!dateendtxt3) 
AND (NLog.Compchk is Null OR  NLog.Compchk = True) 
AND (NLog.Compchk is Null OR NLog.Compchk = False) 

Also, the following will not give you any results:

AND (NLog.Compchk is Null OR NLog.Compchk = True) 
AND (NLog.Compchk is Null OR NLog.Compchk = False) 

NLog.Compchk can not be both True and False . It is going to be one or the other or Null .

You will need to check if the boxes are checked and build the last part of your query around that, (ie IIF() ).