Create, Update, Copy, Delete SharePoint List Views using PowerShell

Requirement is: There are lot of document libraries in a SharePoint site. Periodically, in all libraries there is a need to:

Create a new view
Update an existing view with new filter condition
Create new new by copying existing view and modify the filter
Delete an existing view
Add new field to existing view

Team wanted to automate the process of creation of new SharePoint list views, Deleting existing views, Update filters on existing views and copy existing views. Wrote PowerShell code to do the above:

Create SharePoint List View in PowerShell:

#Function to create new View
Function CreateNewView()
 {  
  Param( [Parameter(Mandatory=$true)] [string]$SiteURL, [Parameter(Mandatory=$true)] [string]$ListName, [Parameter(Mandatory=$true)] [string]$ViewName ) 
  
  $site = Get-SPSite $SiteURL
  $web = $site.openweb()
  
  #Get the List
  $list=$web.lists[$ListName]
  
   #View Fields 
   $viewFields = New-Object System.Collections.Specialized.StringCollection
   
   #Add fields to the view
   $viewFields.Add("Global Entity") > $null
   $viewFields.Add("Document Type")> $null
   $viewFields.Add("Risk")> $null
   $viewFields.Add("Year")> $null

    #Set View options
    $viewRowLimit="100"
    $viewPaged=$true
    $viewDefaultView=$false
    $viewQuery="<Where><Eq><FieldRef Name='Document_x0020_Type' /><Value Type='Choice'>Customer Reconciliation</Value></Eq></Where>"

    #Crete new view
    $newview = $list.Views.Add($ViewName, $viewFields, $viewQuery, $viewRowLimit, $viewPaged, $viewDefaultView)

   #Send message to output console
   write-host "New View $($ViewName) Created Successfully!" -foregroundcolor green 

  $web.Dispose()          
  $site.Dispose()          
 }

Update Existing SharePoint View with PowerShell:

#Function to Update Existing View
Function UpdateViewFilter()
 {  
  Param( [Parameter(Mandatory=$true)] [string]$SiteURL, [Parameter(Mandatory=$true)] [string]$ListName, [Parameter(Mandatory=$true)] [string]$ViewName, [Parameter(Mandatory=$true)] [string]$ViewQuery ) 
  
  $site = Get-SPSite $SiteURL
  $web = $site.openweb()
  #Get the List
  $list=$web.lists[$ListName]
  #Get the View
  $view = $list.Views[$ViewName]
  
  #Update the view
  if($view -ne $null)
  {
   $view.Query = $ViewQuery
   $view.Update()
   $list.update()
   #Send message to output console
   write-host "View $($ViewName) Updated Successfully!" -foregroundcolor green 
  }
  else
  {
   write-host "Could Not find: $($ViewName)!" -foregroundcolor red 
  }
  $web.Dispose()          
  $site.Dispose()          
 }

Copy SharePoint list view in PowerShell:

#Function to Update Existing View
Function CopyView()
 {  
  Param( [Parameter(Mandatory=$true)] [string]$SiteURL, [Parameter(Mandatory=$true)] [string]$ListName, [Parameter(Mandatory=$true)] [string]$SourceView, [Parameter(Mandatory=$true)] [string]$TargetView ) 
  
  $site = Get-SPSite $SiteURL
  $web = $site.openweb()
  #Get the List
  $list=$web.lists[$ListName]
  #Get the source View
  $view = $list.Views[$SourceView]
  
  #Copy the source view
  if($view -ne $null)
  {
   #Get View Fields from an existing view
    $Viewfields = $list.Views[$SourceView].ViewFields.ToStringCollection()
    #Set View options
    $viewRowLimit="100"
    $viewPaged=$true
    $viewDefaultView=$false
    $viewQuery="<Where><Eq><FieldRef Name='Document_x0020_Type' /><Value Type='Choice'>Customer Reconciliation</Value></Eq></Where>"

    #Crete new view
    $newview = $list.Views.Add($TargetView, $viewFields, $viewQuery, $viewRowLimit, $viewPaged, $viewDefaultView)

   #Send message to output console
   write-host "View $($SourceView) Copied Successfully!" -foregroundcolor green 
  }
  else
  {
   write-host "Could Not find: $($SourceView)!" -foregroundcolor red 
  }
  
  $web.Dispose()          
  $site.Dispose()          
 }

Delete SharePoint List View in PowerShell:

#Function to Delete View
 Function DeleteView()
 {  
  Param( [Parameter(Mandatory=$true)] [string]$SiteURL, [Parameter(Mandatory=$true)] [string]$ListName, [Parameter(Mandatory=$true)] [string]$ViewName ) 
  
  $site = Get-SPSite $SiteURL
  $web = $site.openweb()
  #Get the List
  $list=$web.lists[$ListName]
  #Get the View
  $view = $list.Views[$ViewName]
  
  #Delte the view
  if($view -ne $null)
  {
   $list.Views.Delete($view.ID)  
   #Send message to output console
   write-host "View $($ViewName) Deleted Successfully!" -foregroundcolor green 
  }
  else
  {
   write-host "Could Not find: $($ViewName)!" -foregroundcolor red 
  }
  
  $web.Dispose()          
  $site.Dispose()          
 }

Add New Field to Existing View:

#Function to Update Existing View
Function UpdateView()
 {  
  Param( [Parameter(Mandatory=$true)] [string]$SiteURL, [Parameter(Mandatory=$true)] [string]$ListName, [Parameter(Mandatory=$true)] [string]$FieldName) 
  
  #Get the site object
  $site = Get-SPSite $SiteURL
  #Get the Web object
  $web = $site.openweb()
  #Get the List
  $list=$web.lists[$ListName]
  
  #Process Each view
  0..($list.Views.Count-1) | foreach-object {
      #Get the view
      $view = $list.Views[$_]
      
      #Skip Hidden views and Explorer view
      if ( ($view.Title -ne "Explorer View") -and ($view.hidden -eq $false) )
      {
      
        #Delete if already exist
        #while($view.ViewFields.ToStringCollection().Contains($FieldName))
        #{
        #$view.ViewFields.delete($FieldName)
        #$view.Update()
        #}

        #Check if view has the specific field already!
        if(!$view.ViewFields.ToStringCollection().Contains($FieldName))
            {
                #Add new field to existing view
                $view.ViewFields.add($FieldName)
                $view.Update()
                write-host "Field Added to View: $($view.Title) in the list $($list.title)"
            }
       }
         
    }
   
  #Dispose the objects
  $web.Dispose()          
  $site.Dispose()      
 }

Added MOSS 2007 compatibility to support SharePoint 2007 environments

# For MOSS 2007 compatibility
[void][System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SharePoint")

#Region MOSS2007-CmdLets

Function global:Get-SPSite()
{
  Param( [Parameter(Mandatory=$true)] [string]$SiteCollURL )

   if($SiteCollURL -ne '')
    {
    return new-Object Microsoft.SharePoint.SPSite($SiteCollURL)
   }
}
 
Function global:Get-SPWeb()
{
 Param( [Parameter(Mandatory=$true)] [string]$SiteURL )
  $site = Get-SPSite($SiteURL)
        if($site -ne $null)
            {
               $web=$site.OpenWeb();
            }
    return $web
}
#EndRegion

Once tested above snippets, placed them inside my PowerShell script, called those functions wherever required.

$WebURL="https://sharepoint.crescent.com/sites/finance/"

 #Get the Target Site
 $Web=Get-SPWeb $WebURL

 foreach($List in $web.lists)
 {
  if ( ($List.BaseType -eq "DocumentLibrary") -and ($List.Hidden -eq $false) )
   {
   write-host "Processing List: $($list.title)"

    #Call funtion to create new view 
    CreateNewView $WebURL $List.title "Global Customers"

    #Call the Function to Delete view
    DeleteView $WebURL $List.title "Journal Vouchers"

    #Call function to Update existing view 
    UpdateViewFilter $WebURL $List.title "Vendor Reconciliation" "<Where><Eq><FieldRef Name='Document_x0020_Type' /><Value Type='Choice'>Vendor Reconciliation</Value></Eq></Where>"

    #Call function to copy existing view
    CopyView $WebURL $List.title "Vendor Reconciliation" "Customer Reconciliation"

   #Call the function to update view with Internal Name of the new field to be added
    UpdateView $WebURL $list.title "Management_x0020_System_x0020_Department" 
   }
 }

BTW, This is a PowerShell version of my existing work, where I did similar thing using .Net Object Model (C#). How to Create Update Delete SharePoint Views Programmatically