如何访问数组中的标头信息

Question

First off I am new to PowerShell and have written code in many different languages. Most of my experience was from java so typically I format my code from that background so I apologize it if it looks crazy.

I am trying to make a script that I can run against a CSV that will load each of the objects into an array. I want to then check each object to make sure it has an e-mail address, Firstname, and Lastname attached to it. We are currently deleting invalid entries by hand.

I have the following code below that I am working with. I am attempting to import the CSV. I want to read each element in the array and remove the entries that are not meeting my criteria, I then want to export that to a CSV. I am confused on what the objects look like in the array, how to check if the information in each object is null. Any assistance on logic would be nice. The CSV has the headers listed below, but I only care about the onces listed above. Thanks, ' $csv = Read-Host "enter file path to CSV"

$CsvArray = Import-Csv $csv -Header Lastname,Firstname,Department,Phonenumber,Email

  foreach ($i in $CsvArray)
   {
     Write-Host $CsvArray($i)

  if(Lastname -eq $NULL) -or (firstname -eq $NULL) -or (Email -eq $NULL)
     {
       Delete $i from array 
      }
  else
     {
     $i
     }
 } 

 $csvArray | Export-Csv c:\emaillist.txt -force


 Write-Host "Press any key to continue ..."

$x = $host.UI.RawUI.ReadKey("NoEcho,IncludeKeyDown")

`

Answer 1

$CsvArray = Import-Csv $csv -Header Lastname,Firstname,Department,Phonenumber,Email |
Where-Object { $_.Lastname -ne $null -and $_.Firstname -ne $null -and $Email -ne $null } |
Export-Csv C:\emaillist.txt -force