ConvertTo-Dictionary

ConvertTo-Dictionary.ps1

function ConvertTo-Dictionary {
  [CmdletBinding()]
  param (

    [Parameter(Mandatory=$true, ValueFromPipeline=$true)]
    $Collection,
  
    [Parameter(Mandatory=$true)]
    [string]$Key

  )

  begin {
    $dict = $null
  }

  process {
    foreach ($item in $Collection) {
      $keyVal = $item."$Key"
      if (-not $dict) {
        $keyType = $keyVal.GetType().FullName
        $valueType = $item.GetType().FullName
        $dictionaryType = "System.Collections.Generic.Dictionary[$keyType, $valueType]"
        Write-Verbose "Creating new dictionary of type $dictionaryType"
        $dict = New-Object $dictionaryType
      }

      $dict.Add($keyval, $item)
    }
  }

  end {
    $dict
  }
}