Hey everyone! I'm working with a hash table and trying to pull a specific value using its key, like this: $Hash.MyKey1. It works for my first key ('MyKey1'), and I get 'Value 1', but when I try to access any other key, like 'MyKey2', I just get a blank line. I've checked using $Hash.ContainsKey and $Hash.ContainsValue for all keys and values, and those came back true, so I know they're there. I built this hash table from a CSV using a loop, and I can see all keys and values printed correctly when I output the entire hash to the console. I'm just puzzled why the other keys aren't showing their values when I call for them. I've pasted my code below for reference. Any insights would be greatly appreciated!
Code:
$CSVPath = "\SecretSecretNoLookyhomework"
$Hash = @{}
Import-Csv -LiteralPath $CSVPath | Select-Object -Property Property1, Property2 | ForEach-Object {
$Hash.Add(($_.Property1), ($_.Property2))
}
$Hash
"-----------------------------"
$Hash.MyKey1
"----------------------"
$Hash.MyKey2
"-----------------------"
3 Answers
If you're getting unexpected results, double-check that your keys are formatted the way you think. In your CSV, if the keys have trailing spaces, you would need to refer to them exactly like so: $Hash."Key2 ". If you want to avoid issues with spaces, consider trimming the keys before adding them: $hash.Add( $_.Key.Trim(), $_.Value ).
Another approach could be using this: $hash.'Key 2'. It's a reliable way to reference keys that might have spaces or special characters in them.
You might want to try accessing your hash values using bracket notation instead. For example, use $hash['Key 2'] or $hash.'Key 2'. This can sometimes resolve issues with special characters or spaces in keys.
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