SimplePowerShellHelpers.ps1

Function SimpleContextMenu {
    param (
        [Parameter(Mandatory, Position = 0)]
        [System.Object]
        $List,
        [Parameter(Mandatory = $false, Position = 1)]
        [string]
        $Header = "Select"
    )

    if (@("OrderedDictionary", "Hashtable", "Object[]") -notcontains $List.GetType().Name)
    {
        Write-Host "Collection type not supported"
        return
    }

    $choices = @{}
    [Int32]$lastIndex = 0

    Write-Host $Header -ForegroundColor Blue

    if ($List.GetType().IsArray) {
        foreach ($item in $List) {
            $choices[++$lastIndex] = $item
            Write-Host "   $($lastIndex): $item"
        }
    } else {
        foreach ($item in $List.GetEnumerator()) {
            if ($item.Name.StartsWith("__")) { # Keys with this prefix are treated as information and are good for headers and separators
                Write-Host "$($item.Value)" -ForegroundColor Blue
            } else {
                $choices[++$lastIndex] = $item.Name
                Write-Host "   $($lastIndex): $($item.Value)"
            }
        }
    }

    Write-Host ""
    Write-Host "Enter a number between [1, $lastIndex] to select command or <Enter> to ignore" -ForegroundColor Blue
    
    [Int32]$choice = Read-Host

    if (($choice -gt 0) -and ($choice -le $lastIndex)) {
        return $choices[$choice]
    } else {
        return $null
    }
}