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如何在不使用.format.ps1xml 文件的情况下强制将自定义 PSObject 输出为“Format-Table”？

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如何在不使用.format.ps1xml 文件的情况下强制将自定义 PSObject 输出为“Format-Table”？

我知道我可以MyCustomPSObject通过生成和加载MyCustomPSObject.format.ps1xml文件来定义我的格式。

我已经看到人们在.ps1脚本文件内部即时完成这种格式文件生成。（这里也开始列出句子下面“所以我编写了一个名为 Get-ProcessTotal 的高级 PowerShell 函数”从 145 行开始。

据我了解，该格式文件中的第一个条目将用作默认值。

生成该外部文件对我来说似乎很麻烦。

问题：

  • 有没有办法做到这一点而不生成和加载外部文件？

我想要的是“将其输出为表格”. （基本上是贯穿始终Format-Table但在此过程中不会丢失对象性。）

相关问题

脚本 Get-VSSWriters.Current-Version.ps1

这是有问题的脚本：

# This script lists VSS writers.
# The original, uncustomized, version was taken from here:
# https://gallery.technet.microsoft.com/scriptcenter/Powershell-ScriptFunction-415e9e70

$RawWriters = Invoke-Command -ErrorAction Stop -ScriptBlock {
    #Requires -RunAsAdministrator 
    return (VssAdmin List Writers)
} 


# We don't really care about "WriterID" and "WriterInstanceID", so we leave them out of the default 
# display set. (Approach copied from here:
# https://learn-powershell.net/2013/08/03/quick-hits-set-the-default-property-display-in-powershell-on-custom-objects/ )
$defaultDisplaySet = 'WriterEnum', 'WriterName', 'StateID', 'StateDesc', 'LastError'
$defaultDisplayPropertySet = New-Object System.Management.Automation.PSPropertySet('DefaultDisplayPropertySet', [string[]]$defaultDisplaySet)
$PSStandardMembers = [System.Management.Automation.PSMemberInfo[]]@($defaultDisplayPropertySet)


$Writers = @()
for ($i=0; $i -lt (($RawWriters.Count)-3)/6; $i++) {
    $Writer = New-Object -TypeName psobject
    $Writer.PSObject.TypeNames.Insert(0, 'MyVSSWriter')
    $Writer | Add-Member MemberSet PSStandardMembers $PSStandardMembers

    $Writer| Add-Member "WriterEnum" ($i + 1)

    # Note: We split on both single quotes and double quotes.
    # That way this script will work for both:
    # * the English language version of Windows (>>Writer name: 'WMI Writer'<<) 
    # * the German version of Windows (>>Verfassername: "WMI Writer"<<)
    $Writer| Add-Member "WriterName" $RawWriters[($i*6)+3].Split("`"'")[1]

    $Writer| Add-Member "WriterID" $RawWriters[($i*6)+4].Split('{}')[1]
    $Writer| Add-Member "WriterInstanceID" $RawWriters[($i*6)+5].Split('{}')[1]

    $Writer| Add-Member "StateID"   $RawWriters[($i*6)+6].Split('[]')[1]
    $Writer| Add-Member "StateDesc" $RawWriters[($i*6)+6].Split('[]')[2].SubString(1)
    $Writer| Add-Member "LastError" $RawWriters[($i*6)+7].Split(':')[1].Substring(1)

    $Writers += $Writer 
}

$Writers

实际产量

PS C:\> .\Get-VSSWriters.Current-Version.ps1 | select -first 1
WriterEnum : 1
WriterName : Task Scheduler Writer
StateID    : 1
StateDesc  : Stable
LastError  : No error

期望输出

PS C:\> .\Get-VSSWriters.Updated-Version.ps1 | select -first 1
WriterEnum WriterName            StateID StateDesc LastError
---------- ----------            ------- --------- ---------
         1 Task Scheduler Writer 1       Stable    No error

（应该与 相同.\Get-VSSWriters.Current-Version.ps1 | select -first 1 | Format-Table。）

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