Dynamically enumerate object from vertical to horizontal - powershell

Question

I have got data with PowerShell into a object as below, now i would like to convert it from vertical to horizontal. (Like "Text to column" function in Excel). How can I dynamically enumerate "all row 1" as an object header and the rest of them will assign to its child items?
The input file contains three columns, "Row", "Column" and "Text", in PSObject
PS > $table
Row Column Text
--- ------ ----
1 1 Dept
1 2 Time
1 3 Day1
1 4 Day2
1 5 Day3
1 6 Day4
1 7 Day5
1 8 Day6
1 9 Day7
2 1 Marketing
2 2 11:00
2 3 4
2 4 8
2 5 8
2 6 8
2 7 4
2 8 0
2 9 0
3 1 Finance
3 2 09:00
3 3 4
3 4 8
3 5 8
3 6 8
3 7 4
3 8 0
3 9 0
I tried to use the following code to assign it into another object, but I don't know how to let the content put in.
$data = New-Object –TypeName PSObject
$table | %{
if ($_.row -eq 1) {
$data | Add-Member –MemberType NoteProperty –Name $_.text –Value ''
}
}
Output:
PS > $data|ft
Dept Time Day1 Day2 Day3 Day4 Day5 Day6 Day7
---- ---- ---- ---- ---- ---- ---- ---- ----
Expected result:
Dept Time Day1 Day2 Day3 Day4 Day5 Day6 Day7
---- ---- ---- ---- ---- ---- ---- ---- ----
Marketing 11:00 4 8 8 8 4 0 0
Finance 09:00 4 8 8 8 4 0 0

Answer 1

There is a need for some kind of indirect reference. You can do the following:
$dataLabels = New-Object –TypeName psobject
$dataZero = New-Object –TypeName psobject
$data = #() ### or ### New-Object System.Collections.ArrayList
$table | Where-Object { $_.row -eq 1 } | ForEach-Object {
$dataLabels |
Add-Member –MemberType NoteProperty –Name $_.Column –Value $_.Text
$dataZero |
Add-Member –MemberType NoteProperty –Name $_.Text –Value ''
}
$dataZeroCsv = $dataZero | ConvertTo-Csv -NoTypeInformation
for ( $i=0;$i -lt ($Table.Row|Measure-Object -Maximum).Maximum -1;$i++)
{
$dataLine = $dataZeroCsv | ConvertFrom-Csv
$table | Where-Object { ($_.Row - 2) -eq $i } |
ForEach-Object {
$dataLine.($dataLabels.($_.Column)) = $_.Text ### indirect reference
}
$data += $dataLine ### or ### [void]$data.Add( $dataLine )
}
## Output:
$data | Format-Table
provided that $table is defined as follows:
$tableArr = #"
Row Column Text
1 1 Dept
1 2 Time
1 3 Day1
1 4 Day2
1 5 Day3
1 6 Day4
1 7 Day5
1 8 Day6
1 9 Day7
2 1 Marketing
2 2 11:00
2 3 4
2 4 8
2 5 8
2 6 8
2 7 4
2 8 0
2 9 0
3 1 Finance
3 2 09:00
3 3 3
3 4 4
3 5 5
3 6 6
3 7 7
3 8 0
3 9 1
4 1 TestDept
4 2 16:00
4 4 5
"# -split [System.Environment]::NewLine
$table = $tableArr -replace '\s+', ' ' -replace '^\s', '' |
ConvertFrom-Csv -Delimiter ' '
Output:
PS D:\PShell> D:\PShell\SO\52804963.ps1
Dept Time Day1 Day2 Day3 Day4 Day5 Day6 Day7
---- ---- ---- ---- ---- ---- ---- ---- ----
Marketing 11:00 4 8 8 8 4 0 0
Finance 09:00 3 4 5 6 7 0 1
TestDept 16:00 5