If Statement show and hide

Question

Goal: name1, name2, name3 (show and hide comas in between and names if they are selected) 
 Default is N/A if no names are selected 
 What I have tried: if(isnull({pv!process.name1, pv!process.name2,pv!process.name3 }), "N/A","") & if(isnull(pv!process.name1), "",", "& pv!process.name1) & if(isnull(pv!process.name2), "", ", "&pv!process.name2) & if(isnull(pv!process . name3 ), "", ", "&pv! process . name3 ) )

Naresh · Answer

Hi, 
 You can use the following logic. 
 a!localVariables(
 local!name: if(
 all(
 fn!isnull, 
 {
 ri!name1,
 ri!name2,
 ri!name3
 }
 ), 
 "N/A",
 concat(
 if(
 a!isNullOrEmpty(ri!name1),
 "",
 ri!name1
 ),
 if(
 a!isNullOrEmpty(ri!name2),
 "",
 if(
 a!isNullOrEmpty(ri!name1),
 ri!name2,
 {
 ", ",
 ri!name2
 }
 )
 ),
 if(
 a!isNullOrEmpty(ri!name3),
 "",
 if(
 and(
 a!isNullOrEmpty(ri!name1),
 a!isNullOrEmpty(ri!name2)
 ),
 ri!name3,
 {
 ", ",
 ri!name3
 }
 )
 )
 )
 ),
 local!name
)

Naresh · Answer

Yes, It will work. Create an expression rule with this logic and call that rule in your email node. 
 
 ex: 
rule!returnName(
name1: pv!name1,
name2: pv!name2,
name3: pv!name3
)