问题
I'm writing a script emitting output in columns using Format-Table, and cannot get more than 9 to show (either with or without the -AutoSize argument).
Just in case it is not my fault, just something undocumented:
What's the maximum number of columns which Format-Table can show?
If it is unbound, I'll distill a small reproducible case from my script.
I'm using PowerShell 4.0, and create the objects to list like this:
New-Object PSCustomObject -Property ([Ordered] @{
"BDS #" = $bdsVersion
"HKCU" = $hkcuBasePath
"HKLM" = $hklmBasePath
"Name" = $fullName
"CompilerVersion" = $compilerVersion
"RTLVersion" = $rtlVersion
"Define" = $define
"Characterset" = $characterSet
"Architectures" = $architecture
"Frameworks" = $framework
"DllSuffix" = $dllSuffix
})
The DllSuffix column doesn't show even though my console window is wide enough (300 characters wide).
Edit:
As per suggestion by Cole9350, I added the -Wrap to the -AutoSize argument to format the table, but it still fails:
function Get-BDS-ProductSummaries {
$bdsVersions = Get-BDS-Versions
$bdsVersions | ForEach-Object {
$summary = Get-BDS-ProductSummary $_
$summary
} | Format-Table -AutoSize -Wrap
# http://blogs.technet.com/b/nexthop/archive/2011/03/21/psformatorselect.aspx
Write-Host "Slash separated values like xxx/yyy means native/.NET"
}
I call this function from my "main" portion of the script:
$args | ForEach-Object {
$arg = $_
switch ($arg) {
# ...
'ProductSummaries' {
Write-Host "Product Summaries:"
Get-BDS-ProductSummaries
}
# ...
}
$anyArg = $True
}
The link explaining about combining -Wrap with -Format-Table also indicates that sometimes not all columns will show, but doesn't tell under what circumstances.
So I'm looking for guidance: when doesn't it show them all?
I even reordered some of the fields, and merged the HKCU/HKLM path into one field and put that last:
New-Object PSCustomObject -Property ([Ordered] @{
"BDS #" = $bdsVersion
"Name" = $fullName
"CompilerVersion" = $compilerVersion
"RTLVersion" = $rtlVersion
"Define" = $define
"Characterset" = $characterSet
"Architectures" = $architecture
"Frameworks" = $framework
"DllSuffix" = $dllSuffix
"ProjectVersion" = $projectVersion
# "HKCU" = $hkcuBasePath
# "HKLM" = $hklmBasePath
"HKCU/HKLM registry path" = $basePath
})
It shows a 165 character wide table (whereas my console Window is 300 characters wide):
Product Summaries:
BDS # Name CompilerVersion RTLVersion Define Characterset Architectures Frameworks DllSuffix ProjectVersion
----- ---- --------------- ---------- ------ ------------ ------------- ---------- --------- --------------
1 Borland C# Builder 1 C# C# C# Unicode C# .NET 1 .NET ???? ????
2 Borland Delphi 8 none/16.0 none/16.0 VER160/VER160 Ansi/Unicode Win32;.NET 1 VCL/.NET 80 80
3 Borland Delphi 2005 17.0/17.0 17.0/17.0 VER170/VER170 Ansi/Unicode Win32;.NET 1 VCL/.NET 90 ????
4 Borland Delphi 2006 18.0/18.0 18.0/18.0 VER180/VER180 Ansi/Unicode Win32;.NET 2 VCL/.NET 100 ????
5 Borland Delphi 2007 18.5/19.0 18.0/19.0 VER180&VER185/VER190 Ansi/Unicode Win32;.NET 2 VCL/.NET 100 ????
6 CodeGear Delphi 2009 20.0 20.0 VER200 Unicode Win32 VCL 120 11.1;12.0
7 CodeGear Delphi 2010 21.0 21.0 VER210 Unicode Win32 VCL 140 12.0
8 Embarcadero Delphi XE 22.0 22.0 VER220 Unicode Win32 VCL 150 12.2;12.3
9 Embarcadero Delphi XE2 23.0 23.0 VER230 Unicode Win32;Win64 VCL 160 13.4
10 Embarcadero Delphi XE3 24.0 24.0 VER240 Unicode Win32;Win64;OSX32 VCL;FMX1 170 14.3;14.4
11 Embarcadero Delphi XE4 25.0 25.0 VER250 Unicode Win32;Win64;OSX32;iOS-Arm VCL;FMX2 180 14.6
12 Embarcadero Delphi XE5 26.0 26.0 VER260 Unicode Win32;Win64;OSX32;iOS-Arm;Android-Arm VCL;FMX2 190 15.1
13 Embarcadero Appmethod 1 ???? ???? ???? Unicode ???? FMX2 ???? ????
14 Embarcadero Delphi XE6 27.0 27.0 VER270 Unicode Win32;Win64;OSX32;iOS-Arm;Android-Arm VCL;FMX2 200 15.4
15 Embarcadero Appmethod 2 ???? ???? ???? Unicode ???? FMX2 ???? ????
With the path more towards the beginning, the output it 181 characters wide:
BDS # HKCU/HKLM registry path Name CompilerVersion RTLVersion Define Characterset Architectures Frameworks DllSuffix
----- ----------------------- ---- --------------- ---------- ------ ------------ ------------- ---------- ---------
With -Wrap, but without -AutoSize the last column doesn't show either.
When leaving the Format-Table away, it does show all fields, so New-Object PSCustomObject -Property does produce all properties:
BDS # : 14
HKCU/HKLM registry path : \Software\Embarcadero\BDS\14.0
Name : Embarcadero Delphi XE6
CompilerVersion : 27.0
RTLVersion : 27.0
Define : VER270
Characterset : Unicode
Architectures : Win32;Win64;OSX32;iOS-Arm;Android-Arm
Frameworks : VCL;FMX2
DllSuffix : 200
ProjectVersion : 15.4
回答1:
By default, Format-Table will only show 10 columns. To get them all, use "*". See Example and Output below for details.
(FYI: -Wrap is used when the column is being displayed but the data in it is being truncated.)
EXAMPLE:
$aryTemp = @()
$objTemp = New-Object PSObject
$objTemp | Add-Member -type NoteProperty -Name Column1 -Value "Data1"
$objTemp | Add-Member -type NoteProperty -Name Column2 -Value "Data2"
$objTemp | Add-Member -type NoteProperty -Name Column3 -Value "Data3"
$objTemp | Add-Member -type NoteProperty -Name Column4 -Value "Data4"
$objTemp | Add-Member -type NoteProperty -Name Column5 -Value "Data5"
$objTemp | Add-Member -type NoteProperty -Name Column6 -Value "Data6"
$objTemp | Add-Member -type NoteProperty -Name Column7 -Value "Data7"
$objTemp | Add-Member -type NoteProperty -Name Column8 -Value "Data8"
$objTemp | Add-Member -type NoteProperty -Name Column9 -Value "Data9"
$objTemp | Add-Member -type NoteProperty -Name Column10 -Value "Data10"
$objTemp | Add-Member -type NoteProperty -Name Column11 -Value "Data11"
$objTemp | Add-Member -type NoteProperty -Name Column12 -Value "Data12"
$objTemp | Add-Member -type NoteProperty -Name Column13 -Value "Data13"
$objTemp | Add-Member -type NoteProperty -Name Column14 -Value "Data14"
$objTemp | Add-Member -type NoteProperty -Name Column15 -Value "Data15"
$aryTemp += $objTemp
#only shows 10 columns
$aryTemp | Format-Table
#show all
$aryTemp | Format-Table *
OUTPUT:
Column1 Column2 Column3 Column4 Column5 Column6 Column7 Column8 Column9 Column10
------- ------- ------- ------- ------- ------- ------- ------- ------- --------
Data1 Data2 Data3 Data4 Data5 Data6 Data7 Data8 Data9 Data10
Column1 Column2 Column3 Column4 Column5 Column6 Column7 Column8 Column9 Column10 Column11 Column12 Column13 Column14 Column15
------- ------- ------- ------- ------- ------- ------- ------- ------- -------- -------- -------- -------- -------- --------
Data1 Data2 Data3 Data4 Data5 Data6 Data7 Data8 Data9 Data10 Data11 Data12 Data13 Data14 Data15
回答2:
So, now you write a lot about the question, for me the way Format-table behave was given by the *.format.ps1xml file given in C:\Windows\System32\WindowsPowerShell\v1.0. But I can't find PSObject, nor PSCustomObject inside (so 9 seems to be the max by default).
Using the -property param of Format-Table, you can show as many properties as you want in the order you want.
Perhaps you can build your one format file using Writing a Windows PowerShell Formatting File, the Microsoft documentation about the subject.
My way of handling your problem is to create a my C# class (type), to insert it using Add-Type, and then to provide a type file and a format file.
来源：https://stackoverflow.com/questions/24218482/whats-the-maximum-number-of-columns-for-format-table-cmdlet-in-powershell