CSV format string from a Pagelist

In our business logic often we have the requirement to convert PageList to string CSV values.

From - 

PageList.pxResults(1).pyLabel  = P1

PageList.pxResults(2).pyLabel  = P2 

PageList.pxResults(3).pyLabel  = P3

To – "P1","P2","P3"

We need to convert this above page list to a comma-separated value.

There are many ways to achieve this. but the easiest way to do this using an OOTB function 

@pxDataManipulate.pxStringCSVFromPageList

@pxDataManipulate.pxStringCSVFromPageList(PageList,".PropertyName")

This function takes 2 parameters.

pageList - PageList that needs to be iterated

propertyName - property whose CSV is needed

e.g 

@pxDataManipulate.pxStringCSVFromPageList(PageList.pxResults,".pyLabel")

In the above function 

PageList.pxResults - Page List 

.pyLabel - Name of the property whose CSV is needed