As expected, Get-ItemPropertyValue respects ErrorAction if a specified item
does not exists.
But if a property of an existing item is missing then Get-ItemPropertyValue
ignores ErrorAction. According to the tests, it writes terminating errors if
it is called with try or trap. Otherwise it writes non-terminating errors.
The symptoms are similar to Errors-of-unusual-type.
The test 2 error is caused by PSArgumentException "Property NonExistentProperty does
not exist at ...". Presumably the cmdlet does not catch such exceptions
in order to process them with WriteError().
Scripts
- Test-1.missing.item.ps1
- Test-2.existing.item.ps1
- Test-3.unexpected.stop.try.ps1
- Test-4.unexpected.stop.trap.ps1
- windowsserver.uservoice.com/forums/301869-powershell/suggestions/11587617-bug-get-itempropertyvalue-does-not-respect-error