如何修复这个脚本呢?
是的,我在foreach循环中修改了集合,这就是导致此错误的原因。
枚举集合时发生错误:已修改集合;可能无法执行枚举操作。 位于 C:\Users\user\Documents\PowerShell\ChangeAllListsV2.ps1:47 字符:20 + foreach <<<< ($list in $webLists) + CategoryInfo : InvalidOperation: (Microsoft.Share...on+SPEnumerator:SPEnumerator) [], RuntimeException + FullyQualifiedErrorId : BadEnumeration
#Script change in all lists the required field property "testfield" to false
#Part 0 - Configuration
$urlWebApp = "http://dev.sharepoint.com"
$countFound = 0
$countList = 0
$countFoundAndChange = 0
#Part 1 - PreScript
$snapin = Get-PSSnapin | Where-Object {$_.Name -eq "Microsoft.SharePoint.Powershell"}
if ($snapin -eq $null)
{
Write-Host “Loading SharePoint Powershell”
Add-PSSnapin Microsoft.SharePoint.Powershell
}
#Part 2 - Script
$webApp = Get-SPWebApplication $urlWebApp
#$webApp | fl
$webAppSites = $webApp.sites
foreach($site in $webAppSites)
{
Write-Host "***********************************************************************"
Write-Host "Found site: " $site -foreground blue
$siteAllWebs = $site.AllWebs
foreach($web in $siteAllWebs)
{
Write-Host "Found web: " $web -foreground blue
#$web | fl
$webLists = $web.Lists
foreach($list in $webLists)
{
$countList ++
Write-Host "Found list: " $list -foreground blue
#Change list property
$field = $Null
$field = $list.Fields["testfield"]
if($field){
Write-Host "Field found: " $list -foreground green
#Write-Host "in web: " $web -foreground green
$countFound ++
try{
if($field.Required)
{
#######################################################
$field.Required = $False
$field.Update()
#######################################################
$field = $Null
Write-Host "Done!: Change list: " $list -foreground green
$countFoundAndChange ++
}else{
Write-Host "Already!: Change list: " $list -foreground green
}
}
catch{
$field = $Null
Write-Host "Error!: Change list: " $list -foreground red
Write-Host "in web: " $web -foreground red
$_
}
}
}
}
}
Write-Host "Found lists: " $countList
Write-Host "Found lists with column [testfield]: " $countFound
Write-Host "Change lists with column [testfield]: " $countFoundAndChange