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How to adjust formula to add days to date

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  • How to adjust formula to add days to date

    I am trying to create a field in a report that includes a new date (21 days after the production date). But I do not want any values to be listed on the report , IF the production date (af_date_1) is blank. I have tried using the following formula - if(af_date_1 ="","",af_date_1+21. However, I am getting false dates in the report where the "af_date_1" is blank. Can someone tell me how to correct the formula so that I get a date 21 days after my "af_date_1", but get a blank field on my report if af_date_1 is empty?

    Thanks,

  • #2
    Re: How to adjust formula to add days to date

    Is af_date_1 a date field? If so, even if blank it will never equal a character value as in ="".

    You can test for

    af_date_1 = {}
    cdate(af_date_1) = ""
    isblank("af_date_1")

    and probably some others.

    Probably simplest to use

    if(af_date_1 ={},{},af_date_1+21)
    There can be only one.

    Comment


    • #3
      Re: How to adjust formula to add days to date

      Perfect! Thank you for your assistance.

      Comment


      • #4
        Re: How to adjust formula to add days to date

        Originally posted by Stan Mathews View Post
        Is af_date_1 a date field? If so, even if blank it will never equal a character value as in ="".

        You can test for

        af_date_1 = {}
        cdate(af_date_1) = ""
        isblank("af_date_1")

        and probably some others.

        Probably simplest to use

        if(af_date_1 ={},{},af_date_1+21)

        Comment


        • #5
          Re: How to adjust formula to add days to date

          Stan,

          Thank you, the formula if(af_date_1 ={},{},af_date_1+21) worked nicely. Now I realize that I need a second qualifier (and) to only create the formula meeting the first condition AND if a column called "IVF" contains data. Can you provide that? I can't seem to get the correct qualifiers in place.

          Comment


          • #6
            Re: How to adjust formula to add days to date

            if(af_date_1 ={} .and. IVF <> "",{},af_date_1+21)
            Gregg Schmidt

            Comment


            • #7
              Re: How to adjust formula to add days to date

              A curious onlooker here. What language is this code in, and how did you know based on the original question? I am new to JavaScript and Xbasic.

              Comment


              • #8
                Re: How to adjust formula to add days to date

                I assumed it was xbasic because the original expression attempt

                if(af_date_1 ="","",af_date_1+21)

                appeared to use xbasic syntax.
                There can be only one.

                Comment


                • #9
                  Re: How to adjust formula to add days to date

                  if(af_date_1 ={} .and. IVF <> "",{},af_date_1+21)

                  Let me try this again, as I am not getting the desired results. af_date_1 is a date & IVF is a character field. In my report I only wish to have the new calculated date(af_date_1+21) appear IF af_date_1 exists AND IVF exists. For other lines in the report, if af_date_1 or IVF does not exist i would like the new date filed to be blank.

                  Sorry, rookie Alpha user.

                  Comment


                  • #10
                    Re: How to adjust formula to add days to date

                    I didn't read your second question to say that, but in any case

                    if(af_date_1 > {} .and. IVF > "",{},af_date_1+21)

                    should return af_date_1+21 for records where af_date_1 > {}, not blank
                    and IVF > "", not blank.
                    There can be only one.

                    Comment


                    • #11
                      Re: How to adjust formula to add days to date

                      Originally posted by Stan Mathews View Post
                      I didn't read your second question to say that, but in any case

                      if(af_date_1 > {} .and. IVF > "",{},af_date_1+21)

                      should return af_date_1+21 for records where af_date_1 > {}, not blank
                      and IVF > "", not blank.

                      Comment


                      • #12
                        Re: How to adjust formula to add days to date

                        Stan, I really appreciate your help. I tried your last formula. It returns the "opposite" of what i am looking for. This formula resulted in a af_date_1+21 for all rows that did not contain both af_date_1 or IVF and returned Blanks for the rows that contained af_date_1 AND IVF. how do i adjust the formula so the rows with af_date_1 AND IVF return the af_date_21 date and all other rows show a blank? Thanks, i know this is close and i probably am doing a bad job of explaining.

                        Comment


                        • #13
                          Re: How to adjust formula to add days to date

                          The opposite of

                          if(af_date_1 > {} .and. IVF > "",{},af_date_1+21)

                          is

                          if(af_date_1 = {} .and. IVF = "",{},af_date_1+21)
                          There can be only one.

                          Comment


                          • #14
                            Re: How to adjust formula to add days to date

                            Originally posted by Stan Mathews View Post
                            The opposite of

                            if(af_date_1 > {} .and. IVF > "",{},af_date_1+21)

                            is

                            if(af_date_1 = {} .and. IVF = "",{},af_date_1+21)

                            Comment

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