How to assign list value to a variable in Qlikview script?

[wrsjar_qlik]

I have a directory which contains sub directory  'a',  'b', 'c', 'd', 'e' ....  I want load data conditionally, for example:

set vDirList = ['a', 'b', 'c'];  //Only load sub directory 'a', 'b', 'c';

//set vDirList = []; //Load all sub directory

if len($(vDirlist )) = 0  then //for all sub directory

    let vDirs = DirList('D:\*');

else

    let vDirs = $(vDirList);

endif

for each dir in $(vDirs)

    do load ...

next dir;

How to write the script?

[MayilVahanan]

Hi @wrsjar_qlik 

Try like below

https://community.qlik.com/t5/QlikView-App-Dev/loop-through-to-load-all-files-from-a-folder-and-its-...

https://www.quickintelligence.co.uk/convert-drop-folder-files-qvd/

this too:

https://community.qlik.com/t5/Documents/Loop-through-Folders-and-sub-folders-to-get-file-names/ta-p/...