Table format, columns order - powershell

Question

I need to decide the columns' orders of my table. My actual command is that one:
$tab | Sort-Object "Pourcentage" -Descending |
Format-Table -AutoSize |
Out-String -Width 4000 |
Out-File -Append O:\sigdci\public\parcoursArborescence\bilanAnalyse.txt
It gives me that order:
Derniere modification Categorie recherchee Dernier acces Dossier Pourcentage
But I need "Dossier" to be first, then "Categorie recherchee" and "Pourcentage" shall be 2nd and 3rd. How shall I proceed?

Answer 1

Specify the column headers in the desired order:
$tab | Sort-Object "Pourcentage" -Descending |
Format-Table 'Dossier', 'Categorie recherchee', 'Pourcentage',
'Derniere modification', 'Dernier acces' -AutoSize |
Out-String -Width 4000 |
Out-File -Append 'O:\sigdci\public\parcoursArborescence\bilanAnalyse.txt'
If you need to dynamically determine the column names you could do it like this:
$headers = $tab[0].PSObject.Properties |
Where-Object MemberType -eq NoteProperty |
Select-Object -Expand Name
However, you'd have to bring that list into your desired order somehow. Perhaps you could do it like this:
$allHeaders = 'Dossier', 'Categorie recherchee', 'Pourcentage',
'Derniere modification', 'Dernier acces'
$actualHeaders = $tab[0].PSObject.Properties |
Where-Object { MemberType -eq NoteProperty } |
Select-Object -Expand Name
$headers = $allHeaders | Where-Object { $actualHeaders -contains $_ }
$allHeaders is an array that contains all headers in the correct order. Then you remove all items that aren't present in $actualHeaders from that list, preserving the order of the remaining headers.