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automatically place decimal point

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    automatically place decimal point

    I have an applications where large amount of numbers are entered. Those numbers are all dollar amounts. I would like the decimal point automatically placed for me to reduce keyboard entry fatigue and speed data entry.

    For example: 1234 would show in the display as 12.34 with the decimal point placed automatically at 2-places.

    Any ideas?

    Thanks.

    #2
    RE: automatically place decimal point

    Interesting question.

    First thought here is that you might collect the input in a text box using a variable that is of character type. Then convert and store it in the record in numeric format later.

    this also sounds like something that s/b discussed with the end users in detail beforehand. (I'm not suggesting you haven't studied this carefully, it's just that occasionally I've discovered that my own ideas for how I might like for something to work sometimes aren't the same ideas as my customer.)

    -- tom

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      #3
      RE: automatically place decimal point

      On another project, I simply had a second field that was field-A/100 but the users for this project probably couldn't handle the idea that the decimal point wouldn't appear the the field in which the entered data.

      I'll keep working on it.

      Comment


        #4
        RE: automatically place decimal point

        John,
        Place this script in the CanWriteField event of the field. It will take the amount entered, divide it by 100 and write it back to the field. Hope this helps.

        Comment


          #5
          RE: automatically place decimal point

          Script please Ohlen.

          Comment


            #6
            RE: automatically place decimal point

            Colin,
            A little senior moment here. Must have pushed the send button too soon. Here's the script.

            dim value as N
            value=val(a_field_value)/100
            a_field_value=value

            Comment


              #7
              RE: automatically place decimal point

              From one senior to, i presume, another -
              Thanks.

              Comment


                #8
                RE: automatically place decimal point

                Just watch out - what happens when the user wants to enter $5.00 and just enters "5" - the result will be $0.05. Probably not what the owners of the business would want.

                Comment


                  #9
                  RE: automatically place decimal point

                  Ohlen
                  Works a treat, but with a sudden realisation - just so long as the operator inputs the number as an integer. Massive losses could be incurred if someone enters the decimal point.

                  I'm afraid my skills to date are not sufficient to overcome that hurdle. Help!

                  Comment


                    #10
                    RE: automatically place decimal point

                    Cal
                    I don't think there is any solution for that scenario.
                    Actually you soon get used to inputting all the digits.I use Quickbooks; it is tolerant of you entering the d point but certainly won't cope if you enter 5 for 5.00. The result is as you describe

                    Comment


                      #11
                      RE: automatically place decimal point

                      That is exactly what I want.

                      Comment


                        #12
                        RE: automatically place decimal point

                        The code works perfectly.

                        As for the "error" that they get should they use the decimal point...too bad for them.

                        Thanks for everything.

                        Comment


                          #13
                          RE: automatically place decimal point

                          Assuming the value is being received as text, you could detect the decimal by searching the string using the substring inclusion operator ($). If you find a decimal point you could pop up a warning to the user and ask them to re-enter the value without the decimal.

                          -- tom

                          Comment


                            #14
                            RE: automatically place decimal point

                            You could do the same with a numeric by using the mod() function with a denominator of 1. The result will be non-zero if the number entered is not a whole number.

                            -Lenny

                            Lenny Forziati
                            Vice President, Internet Products and Technical Services
                            Alpha Software Corporation

                            Comment


                              #15
                              RE: automatically place decimal point

                              John,

                              "too bad for them" could too easily become "too bad for the programmer." Using Ohlen's example with Lenny's suggestion it's as simple as:

                              dim value as n
                              value = val(a_field_value)
                              If mod(value,1)=0
                              a_field_value=value/100
                              end if

                              Now, Lenny (or anyone), why doesn't the contains() function work as a means for checking for a decimal point, as in:

                              If contains(a_field_value,".")=.t.

                              This always evaluates true with or without a decimal.

                              Ray Lyons

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