RickB

This code creates a synthetic object.

$instance = new-object Management.Automation.PSObject
Add-Member -InputObject $instance NoteProperty 'Type' $type
write-host "Instance created - $type"
$instance.psobject.members|write-host
foreach ($member in $members)
{ Write-Host "Adding member '$($member.name)'"
$instance.psobject.members.Add($member)
}

As you can see in the output below, all the members
are added except the 'ToString' psScriptMethod.
But I get no error if I add this very same method to
this very same object, using exactly the same syntax,
at the command prompt.
Can anyone give me a hint why?

Instance created - PFW_FileID
System.String Type=PFW_FileID
System.String ToString()
System.Type GetType()
System.Boolean Equals(Object obj)
System.Int32 GetHashCode()Adding member 'LName'
Adding member 'EventNumber'
Adding member 'ToString'
Exception calling "Add" with "1" argument(s): "A PSProperty or
PSMethod object cannot be added to this collection."
At C:\...\Define_Class.ps1:84 char:40
+ $instance.psobject.members.Add <<<< ($member)
Adding member 'Match'