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One data display 2 functions.

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Last Post by Crow 10 years ago

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Crow

(@dustincrowell)

Posts: 104

Estimable Member

Topic starter

CPS 12-
Unsure if this is possible or not, but I would like a data display to display a function, and if that function returns no value then return the value of another function.

Example:
{
if fnWhichOne("Hep B",1)==""
then fnSeriesVaxDt(DOCUMENT.HEPBHTMLV,1)
else "" endif
}

Just a very rough idea, I have no idea what the actual expression will look like.
I just want a date from either the first fn or the second fn. This is to view immunization dates from obsterms and HTML. Or, If anyone has a current way to view both they would like to share I would appreciate it.

Thanks in advance.

Posted : March 9, 2015 12:43 pm

bhoover

(@bhoover)

Posts: 360

Honorable Member

I've never tried this before in a data display so you made me curious. It worked for me. I did something very simple:

{
if (fnfirst() <> "") then
fnfirst()
else
fnsecond()
endif

}

I tried having the first function return a blank string and the second function output correctly. If I had the first function return a string it output correctly. Looking at your example above (I know its a rough idea) I would be concerned that fnWhichOne(“Hep B”,1) would never output even if there is a value.

Brad

Posted : March 10, 2015 10:00 am

Crow

(@dustincrowell)

Posts: 104

Estimable Member

Topic starter

Brad,

Worked perfectly!
{if (fnSeriesVaxDt(DOCUMENT.HEPBHTMLV,1) "") then fnSeriesVaxDt(DOCUMENT.HEPBHTMLV,1) else fnWhichOne("Hep B",1) endif}

Posted : March 10, 2015 11:41 am

bhoover

(@bhoover)

Posts: 360

Honorable Member

Glad to hear it.

Posted : March 11, 2015 2:14 am

Crow

(@dustincrowell)

Posts: 104

Estimable Member

Topic starter

One more question. When the form first loads, most of the data displays say VOID. It is not until I click on another tab and then go back to the form that the data displays are displaying correctly. Does this have to do with a missing evaluate function somewhere?
Thanks

Posted : March 11, 2015 7:54 am

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