psobject 属性集失去顺序 - 如何保留顺序？

Question

我正在使用 Export-Excel，并且我正在使用的 psobject 属性集正在重新排序，这使得我的 Excel 标题顺序错误。

这是我的代码：

       foreach ($errCode in $ErrCodes) 
       {
          $resultHelp = [System.Collections.Generic.List[psobject]]::new() 
          Write-Host "another:"
          $err = $errCode #get each error code to lookup in mdb file
          Write-Host $err
          $resultHelp = ProcessHelpMDB -mdbLookupError $errCode -mdbFilePath $basePathFull -mdbDeviceSeries $Ver #######

          $result = [ordered] @{
                  "ScreenNumber" = ""
                  "KKey" = ""
                  "EnglishUS" = ""
                  "PictureID" = ""
                  "ImageFound" =""
                  "ImageFileName" = ""
          } #this didn't do anything
          #loop thru results from Help MDB file for $errCode
          ###this loses order:
          $result = foreach($row in $resultHelp.GetEnumerator()) #this is working for each row
          {
              if($row -ne $True) #not sure why it adds true at the top
              {
                Write-Host $row.TextID #prints HELP_JAM; this is key for kapptext.mdb
                #lookup value from kapptext.mdb
                Write-Host $($row.TextID) #prints nothing but looks ok in next function
                $longText = ProcessK_MDB -mdbLookupstring $($row.TextID) #gives English-US from db for parameter given, which is long error instruction
                #export data found above to excel. 
                #### minimal example shows how get each row data since it's part of issue
                #get the data ready to put in spreadsheet
                $result = New-Object psobject -Property @{
                    ScreenNumber = $($row.ScreenNumber)
                    KKey = $($row.TextID)
                    EnglishUS = $($longText)
                    PictureID = $($row.PictureID)
                    ImageFound = ""
                    ImageFileName = ""
                } 
              } #if not true
          } #foreach row $resultHelp
          #######I think something needs to change in data structure above...not sure what
          $date = (Get-Date).tostring("MM-dd-yyyy") 
          [System.String] $help_spreadsheet_File = "COMPONENT MAP HELP_",$($date),".xlsx"
          $out_path = '\\company.net\EndToEnd\ComponentMaps'
          $outFilePath = Join-Path -Path $out_path -ChildPath $help_spreadsheet_File
           #write to dated file at out_path location
           #export content to spreadsheet
           $xlsx = $result | Export-Excel -Path $outFilePath -WorksheetName $errCode -Autosize -AutoFilter -FreezeTopRow -BoldTopRow  -PassThru # -ClearSheet can't ClearSheet every time or it clears previous data  ###seems to have issue over-writing each row below header
          $ws = $xlsx.Workbook.Worksheets[$errCode]
          $ws.Dimension.Columns  #number of columns
          $ws.Dimension.Rows     #number of rows
          $ws.Row(1).Height
          $ws.Row(1).Height = 25
          $ws.Column(5).Width
          $ws.Column(5).Width = 50
          Close-ExcelPackage $xlsx
          Write-Host "Break when done with first errCode $($errCode)" #50-9
        

这就是 $resultHelp 的样子：

[0] $true (I'm not sure why it puts true at the top)
[1] @(HelpCode=9;ScreenNumber=1;TextID=HELP_...JA;PictureID=HELP_...RIB)
[2] @(HelpCode=9;ScreenNumber=2;TextID=HELP_...ROLL;PictureID=HELP_...ROLL)
[3] @(HelpCode=9;ScreenNumber=3;TextID=HELP_...EDGE;PictureID=HELP_...UT)
...

输出如下所示（重新排序）：

ImageFound  ScreenNumber  ImageFileName   KKey   EnglishUS   PictureID
(data here)

我正在查看列排序，它没有更改电子表格的顺序输出。我也尝试在这里添加[ordered]，

$result = New-Object psobject -Property [ordered]@{

但它有错误消息（并且我找不到足够接近的示例来修复它）

New-Object : Cannot bind parameter 'Property'. Cannot convert the "[ordered]@" value of type "System.String" to type "System.Collections.IDictionary".

Answer 1

您正在传递一个哈希表，New-Object -Property并且哈希表不保留输入顺序。

改变这个：

$result = New-Object psobject -Property @{
    ScreenNumber = $($row.ScreenNumber)
    KKey = $($row.TextID)
    EnglishUS = $($longText)
    PictureID = $($row.PictureID)
    ImageFound = ""
    ImageFileName = ""
}

到：

$result = New-Object psobject -Property $([ordered]@{
    ScreenNumber = $($row.ScreenNumber)
    KKey = $($row.TextID)
    EnglishUS = $($longText)
    PictureID = $($row.PictureID)
    ImageFound = ""
    ImageFileName = ""
})

[ordered]@{...}除非您将表达式包装起来，否则它不起作用的原因$()是 PowerShell 采用不同的规则来解析命令参数