topic Re: CALL parameters reusable? in QlikView

CALL parameters reusable?

Michiel_QV_Fan — Mon, 23 Jan 2017 07:32:17 GMT

Can CALL parameters be reused by creating variables from them?

If I have something like this:

CALL ListFiles('C:\downloads') the parameter is, I guess, a 1 time variable? Or is it reusable in some way?

It is of course possbile to do it this way:

SET _location = C:\downloads and then CALL ListFiles('$('_location ') but then the variables have to be added extra as scripting parameters which I don't want.

Re: CALL parameters reusable?

marcus_sommer — Mon, 23 Jan 2017 07:48:18 GMT

I don't think that this will be possible - you will need to go the extra step and create (and probably delete) these variables within the script - for this could be include-variables quite helpful: The $(Include) which you $(Must_Include) into your toolkit.

- Marcus

Re: CALL parameters reusable?

gardenierbi — Mon, 23 Jan 2017 09:18:42 GMT

michielvandegoor‌, sub parameters are only available within the sub you're using them.

Is this something you can use :

SUB ListFiles(pLocation, pReturnValue)

// Do something

LET $(pReturnValue) = '$(pLocation)';

END SUB

CALL ListFiles('C:\downloads', 'vLocation')

After using this call statement there is a variable with the name 'vLocation'.

Re: CALL parameters reusable?

Michiel_QV_Fan — Mon, 23 Jan 2017 09:46:04 GMT

gardenierbi , looks promising but I need to test this.

Thanks!