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Calculate end date from start date and radio button values


Level 1

Using FormCalc, I wish to calculate from a user entered start date, adding 90, 180 or 365 days to get to get an end date. I am using radio buttons for the 90, 180 and 365 days.  So far I have this:

(radioButton.rawValue==1)//radio button bound to 1 is on/yes then;//

and I have this:




= newDate

but I don't know how to put them together or incorporate the 180 and 365 days.  I know the second part works because I currently use it, but that is as far as I have gotten.

Any help/suggestions will be greatly appreciated!!!


Lou Johnson

1 Reply


Former Community Member

Take a look at this answer I gave another person about adding days to dates: Re: Adding Days to a Date​.

So, depending on whatever value the user picks from the radio button (90, 180, 365), add that number to a periodSelect variable, then run a  Num2Date call to set the value of the newDate field.  The example below presumes you have a radio button called radioButton1 with default button values of '0' for 90 days, '1' for 180 days, and '2' for 365 days.


var periodSelect

var newDate_Num

if (radioButton1.rawValue == "1") then

    periodSelect = 180

elseif (radioButton1.rawValue == "2") then

    periodSelect = 365


    periodSelect = 90


newDate_Num = Date2Num(Start_Date.formattedValue, "YY/DD/YYYY") + periodSelect

newDate.rawValue = Num2Date(newDate_Num, "YY/DD/YYYY")

Caveat to using .rawValue versus .formattedValue when it comes to date fields (something I had to figure out/learn on my own the hard way): .rawValue will be zero if the user clicks in the date field and picks via the drop-down calendar rather than types it in.  My best guess is that happens because the calendar drop-down box mouseclick isn't a date, but a window coordinate that the subroutine has to convert into a date for the .formattedValue.

Hope this helps.

- Kaye