How to ONLY get property value
Solution 1:
Replace
| select IPAddressToString
With (Powershell 2.0+)
| select -First 1 -ExpandProperty IPAddressToString
Or, in the case where you want to work with an array
| select -ExpandProperty IPAddressToString
This will give you an array of strings, so if you want individual addresses, use something like
([System.Net.Dns]::GetHostAddresses($computer) | select -ExpandProperty IPAddressToString)[0]
Solution 2:
Using your example, you'd type $Computer.IPAddressToString
to return the array of IP addresses. If there is only 1 IP address for that hostname, then that's all there is. However, a hostname may have many addresses, and that's why it's an array. So if you only want to see the first IP address in the array, you could type $Computer.IPAddressToString[0]