Question

Adding Columns to a list using Pwershell

Asked by: sunilbains

Iam using a Power shell script to insert a column to my sharepoint list .But iam getting below error.
Unable to index into an object of type Microsoft.SharePoint.SPListCollection.
At C:\Scripts_20091009\CreateListColumns.ps1:29 char:18
+ $list=$web.Lists[' <<<< cms PageDetails']
You cannot call a method on a null-valued expression.

Iam running  from the server itself
.\CreateListColumns.ps1 http://servername:8005/sites/sitename/


Can Somebody help. 

param([string]$Url)
 
[void][System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SharePoint")
 
clear
function Get-SPSite([string]$url) {
 
	New-Object Microsoft.SharePoint.SPSite($url)
}
 
function Get-SPWeb([string]$url) {
 
	$SPSite = Get-SPSite $url
	$SPSite.OpenWeb()
}
 
#####################
# open Sharepoint site
#####################
 
$web = Get-SPWeb($url)
 
 
#########################
#
#    Get Refernce of cms PageDetails List
#
#########################
$list=$web.Lists['cms PageDetails']
 
 
#########################
#
#    Add FlashName Column to cms PageDetails List
#
#########################
	if(!($list.Fields.ContainsField('FlashName')))
	{
		$list.Fields.Add("FlashName",[Microsoft.SharePoint.SPFieldType]::Text, "")
		#########################
		#
		#    Change the current view to make the column editable SharePoint List
		#
		#########################
	
		$Views = $list.Views["All Items"]
		$Views.ViewFields.Add("FlashName")
		$Views.Update()
		write-host "Column created."
	}
	
 
#########################
#
#    Add ImageName Column to cms PageDetails List
#
#########################
	if(!($list.Fields.ContainsField('ImageName')))
	{
		$list.Fields.Add("ImageName",[Microsoft.SharePoint.SPFieldType]::Text, "")
		#########################
		#
		#    Change the current view to make the column editable SharePoint List
		#
		#########################
 
		$Views = $list.Views["All Items"]
		$Views.ViewFields.Add("ImageName")
		$Views.Update()
		write-host "Column created."
	}

                                  
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Asked On
2009-10-22 at 08:21:43ID24834881
Topic

MS SharePoint

Participating Experts
1
Points
500
Comments
4

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Answers

 

by: debehoPosted on 2009-10-23 at 04:11:00ID: 25643196

Did you try to use

$list=$web.Lists[<DISPLAY NAME OF LIST>]
or
$list=$web.Lists[<INTERNAL NAME OF LIST>]
or
$list=$web.Lists[<INTERNAL GUID OF LIST>]
?

 

by: sunilbainsPosted on 2009-10-24 at 16:33:41ID: 25654870

Hi Debeho,
I havenot tried that.

Can you tell me how to print or display all lists  name?

 

by: debehoPosted on 2009-10-25 at 11:25:16ID: 25657557

<DISPLAY NAME OF LIST> is the displayed (headings etc.) name of your list

<INTERNAL GUID OF LIST>

Go to List Settings and have a look at the url:

/_layouts/listedit.aspx?List={12ABCC9A-B43C-4D5E-9330-D59E4E1843A8}

("internal names" make only sense in the context of fields - I mixed it up)

 

by: sunilbainsPosted on 2009-10-26 at 08:59:21ID: 25663630

Thanks all. I got it. Its some permission issue

20120131-EE-VQP-002

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