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Last Day Of The Month Code

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  • Last Day Of The Month Code

    I have written the following expression for anyone who neeeds to find the last day of a month:

    IF(LEN(ALLTRIM(RIGHT(DTOC(CTOD(ALLTRIM(STR(MONTH(EDATE),2,0))+"/31/"+ALLTRIM(RIGHT(STR(YEAR(EDATE),4,0),2)))),2)))>0,CTOD(ALLTRIM(STR(MONTH(EDATE),2,0))+"/31/"+ALLTRIM(RIGHT(STR(YEAR(EDATE),4,0),2))),IF(LEN(ALLTRIM(RIGHT(DTOC(CTOD(ALLTRIM(STR(MONTH(EDATE),2,0))+"/30/"+ALLTRIM(RIGHT(STR(YEAR(EDATE),4,0),2)))),2)))>0,CTOD(ALLTRIM(STR(MONTH(EDATE),2,0))+"/30/"+ALLTRIM(RIGHT(STR(YEAR(EDATE),4,0),2))),IF(LEN(ALLTRIM(RIGHT(DTOC(CTOD(ALLTRIM(STR(MONTH(EDATE),2,0))+"/29/"+ALLTRIM(RIGHT(STR(YEAR(EDATE),4,0),2)))),2)))>0,CTOD(ALLTRIM(STR(MONTH(EDATE),2,0))+"/29/"+ALLTRIM(RIGHT(STR(YEAR(EDATE),4,0),2))),CTOD(ALLTRIM(STR(MONTH(EDATE),2,0))+"/28/"+ALLTRIM(RIGHT(STR(YEAR(EDATE),4,0),2))))))

    Substitute EDATE (a date filed value) with your date, and you get the end of the month date.

    If anyone knows of a more efficient way or function in A5 let me know.

  • #2
    RE: Last Day Of The Month Code

    i would do something like this

    addmonths(ctod(ut(str(month(edate)))+chr(92)+"01"+chr(92)+ut(str(year(edate)))),1)-1

    Comment


    • #3
      RE: Last Day Of The Month Code

      I don't know if this is "more efficient", but here is the method that I use:

      m=month(date())

      if m=1
      mstr="31"
      end if

      if m=2
      if year(date())=2000 .or. year(date())=2004 .or. year(date())=2008 .or. year(date())=2012
      mstr="29"
      else
      mstr="28"
      end if
      end if


      if m=3
      mstr="31"
      end if

      if m=4
      mstr="30"
      end if

      if m=5
      mstr="31"
      end if

      if m=6
      mstr="30"
      end if

      if m=7
      mstr="31"
      end if

      if m=8
      mstr="31"
      end if

      if m=9
      mstr="30"
      end if

      if m=10
      mstr="31"
      end if

      if m=11
      mstr="30"
      end if

      if m=12
      mstr="31"
      end if

      mstr="-"+mstr+"-"

      date2=ctod(alltrim(str(month(date()))+mstr+alltrim(str(year(date())))))

      Gary Traub
      Gary S. Traub, Ph.D.

      Comment


      • #4
        RE: Last Day Of The Month Code

        Robert, Michael & Gary,

        There are a couple of problems with all your approaches
        1. CTOD() converts differently depending upon American or European date formats
        2. You have not accounted for the blank date case


        function MonthEnd as D(DateVal as D)

        ' Returns date of Last day of DateVal's month or blank

        MonthEnd=iif(DateVal={},{},Addmonths(DateVal-Day(DateVal)+1,1)-1)

        end function


        Hope this helps!

        Regards,

        Ira J. Perlow
        Computer Systems Design & Associates
        csda@mediaone.net
        Regards,

        Ira J. Perlow
        Computer Systems Design


        CSDA A5 Products
        New - Free CSDA DiagInfo - v1.39, 30 Apr 2013
        CSDA Barcode Functions

        CSDA Code Utility
        CSDA Screen Capture


        Comment


        • #5
          RE: Last Day Of The Month Code

          I don't ever use European settings, but I appreciate your suggestion, and will try it tomorrow.

          How do I implement the function in the table, or browse?

          I've tried the action script in the field rules, but it hasn't worked for me (I may be doing something wrong).

          Comment


          • #6
            RE: Last Day Of The Month Code

            Robert,

            I believe you have to create a global function. Then in field rules, forms, reports, etc. MonthEnd({06/01/2000})

            Daryl

            Comment


            • #7
              RE: Last Day Of The Month Code

              Michael:

              Your script is ingenius! Works beautifully. Thanks ...

              Gary
              Gary S. Traub, Ph.D.

              Comment


              • #8
                RE: Last Day Of The Month Code

                Ira:

                Actually, your function is the one I was talking about. Very consice, and efficient. Thanks!
                Gary S. Traub, Ph.D.

                Comment


                • #9
                  RE: Last Day Of The Month Code

                  Ira,
                  Thanks for a great expression! I use a similar approach, but yours accounts for any date format. The simplest approach is always the best.

                  Jerry

                  Comment


                  • #10
                    RE: Last Day Of The Month Code

                    Thanks a lot.

                    The function works fine (I used a prior thread to figure out how to incorporate the function), but the halt script message appears each time I re-evaluate the field rules.

                    Is that normal?

                    If so, how do I prevent it?

                    Comment


                    • #11
                      RE: Last Day Of The Month Code

                      Robert,

                      Anytime a script runs, A5HALT will pop up if the A5HALT.DLL file is present. This allows you to abort script execution if the script hangs. I presented the solution as global script function, but in the field rules you'd be better served just to use the expression with the appropriate Date field substituted for the DateVal field, as in

                      iif(DateField={},{},Addmonths(DateDield-Day(DateField)+1,1)-1)

                      The point is that if the expression is all in one (as opposed to multiple lines of script code, you can just use the expression.

                      Just because I presented the expression in a global function, doesn't mean you can't use just the expression. You may be unfamiliar with A5, but try to extrapolate from what's presented. You will seldom ever see the code exactly as you need it.

                      Regards,

                      Ira J. Perlow
                      Computer Systems Design & Associates
                      csda@mediaone.net
                      Regards,

                      Ira J. Perlow
                      Computer Systems Design


                      CSDA A5 Products
                      New - Free CSDA DiagInfo - v1.39, 30 Apr 2013
                      CSDA Barcode Functions

                      CSDA Code Utility
                      CSDA Screen Capture


                      Comment


                      • #12
                        RE: Last Day Of The Month Code

                        Ira:

                        I don't write too many scripts, but I am curious about the one you wrote here. I copied it into my A5V1.2 and compiled it.... that went ok.

                        But I wanted to see the value so I tried to use ui_msg_box(,,) but then it wouldn't compile.

                        First I tried to display it with: ui_msg_box("date is",dtoc(MonthEnd), when that didn't work, I tried the following (which also wouldn't work)

                        test=CTOD(MonthEnd)
                        ui_msg_box("date is",test)

                        They both compiled, but both returned the following error message "invalid variable type"

                        I attached the little script to a button (push).

                        Any ideas how I can get this to display?

                        Thanks in advance.

                        Cheers

                        Comment


                        • #13
                          RE: Last Day Of The Month Code

                          Derek,

                          The way I made the MonthEnd function is that you must give it a date value (of date type) and it returns the end of the month for the date value as another date value. Thus to get the end of the current month, you would use the system date, which is returned by the built-in function DATE(). If you want to convert it to a character type (for display in ui_msg_box etc), you must use DTOC() function. Thus the expression would look like

                          ui_msg_box("date is",dtoc(MonthEnd(Date())))

                          Of course you could use a date type field or any valid date expression substituted for DATE().

                          Regards,

                          Ira J. Perlow
                          Computer Systems Design & Associates
                          csda@mediaone.net
                          Regards,

                          Ira J. Perlow
                          Computer Systems Design


                          CSDA A5 Products
                          New - Free CSDA DiagInfo - v1.39, 30 Apr 2013
                          CSDA Barcode Functions

                          CSDA Code Utility
                          CSDA Screen Capture


                          Comment


                          • #14
                            RE: Last Day Of The Month Code

                            Derek:

                            To your little script, you need to add the following:

                            dim test as d

                            so that the variable "test" is recognized as a date variable.

                            Also, in your first script, you are missing one parenthesis at the very end, i.e., try:

                            ui_msg_box("date is",dtoc(MonthEnd))

                            Hope this helps ...

                            Gary
                            Gary S. Traub, Ph.D.

                            Comment

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