PowerShell - create list from list template in list template gallery

Question

Using PowerShell on a SharePoint 2010 site, how can you create a new list from a list template found in the list template gallery?. I want to be able to add several lists at once (just in numerically ascending order). What I have is:

$web = "http://site"
Get-SPWeb $web | ForEach { foreach ($hotdesk in 1,2,3) { $_.Lists.Add("Hot Desk " + $hotdesk, "",
$_.ListTemplates["My List Template"])}}

However, 'My List Template' doesn't work, since it looks like it only uses the built in list templates, not any custom ones that have been created from an existing list or uploaded to the site.

Answer 1

you can get the built in list templates using the SPListTemplateType enumeration:

$listTemplate = [Microsoft.SharePoint.SPListTemplateType]::Contacts

if you want to access custom list templates saved as STP files on your site, you have to fetch them from your sites list templates and access them through the list name:

$site = Get-SPSite http://site
$listTemplates = $site.GetCustomListTemplates($web)
$web.Lists.Add("Your new list", "", $listTemplates["ListTemplateName"])

you can also save these list templates using SaveAsTemplate() method on a given SPList object.

Answer 2

$web is null here. we need modification.

$site = Get-SPSite http://site
$listTemplates = $site.GetCustomListTemplates($site.RootWeb)
$Web=Get-SPWeb http://weburl  #(DestinationWeb)
$web.Lists.Add("Your new list", "", $listTemplates["ListTemplateName"])
$web.update()
$web.Dispose()