How to retrieve all keys from hashtable containing "Keys" and "Values" text? [duplicate]

Question

In PowerShell you can get all keys from a Hashtable using the Keys property:

$ht=@{
    "1"="10";
    "2"="20";
}
$ht.Keys

This returns:

2
1

BUT this:

$ht=@{
    "Keys"="Keys text";
    "text1"="text1111"
}
$ht.Keys

will return Keys text (the value of the Keys item)

Is there any way to force .Keys to return the Keys property instead the Keys item's value?

Answer 1

$ht | Select-Object -ExpandProperty Keys

Answer 2

This seems like a bug since the syntax to retrieve the Keys entry is superseding the HashTable's Keys property, though I could see one expecting it to behave either way. According to the Adding a key of 'keys' to a Hashtable breaks access to the .Keys property issue on GitHub, this is a bug but would require a breaking change to correct, so the workaround below was added to the documentation.

According to about_Hash_Tables:

If the key name collides with one of the property names of the HashTable type, you can use PSBase to access those properties. For example, if the key name is keys and you want to return the collection of Keys, use this syntax:

$hashtable.PSBase.Keys

You could also retrieve the property value through reflection...

PS> $ht.GetType().GetProperty('Keys').GetValue($ht)
text1
Keys