cmdlets - VBscript Public Property Set/Get equivalent in PowerShell -

i'm trying add elements powershell variable add-member. have no problem adding static properties noteproperty, , methods scriptmethod, :

$variable = new-object psobject $variable | add-member noteproperty key "value" $variable | add-member scriptmethod dosomething { // code } 

now i'm stuck on :

i want add property has getter , setter , bunch of things via code block.

the vbscript equivalent :

class myclass   public property item(name)     // code return value of item "name"   end property   public property let item(name,value)     // code set value of item "name" value "value"   end property end class 

note code sections need write more set/get value, they're more complex (set other related variables, access external data, etc...).

i failed find easy in powershell , ended adding instead 2 scriptmethods, getitem , setitem.

what best way implement get/let functionnality in member of psobject in powershell ?

thanks in advance

you should add -membertype scriptproperty , use -value , -secondvalue:

# make object script property myproperty $variable = new-object psobject  # “internal” value holder $variable | add-member -membertype noteproperty _myproperty -value 42  # get/set methods $get = {     write-host "getting..."     $this._myproperty } $set = {     write-host "setting..."     $this._myproperty = $args[0] }  # script property $variable | add-member -membertype scriptproperty myproperty -value $get -secondvalue $set 

test:

write-host "original value: $($variable.myproperty)" $variable.myproperty = 123 write-host "after assignment: $($variable.myproperty)" 

it prints:

getting... original value: 42 setting... getting... after assignment: 123 

unfortunately not know how make “protected/private” internal value holders note property _myproperty in our example (or whether possible @ all).

update: apparently it’s answer more or less title asks. question in fact parameterized property, not get/set methods implemented via script blocks. attempt use type of property (parameterizedproperty) add-member has failed, perhaps not yet supported.