The code locates a landing page and search for web part called "Shared Documents". If page is not checked out, it checks out the page and delete "Version" column web part view (_UIVersionString)
private void
UpdateViewOfWebpart(SPSite createdSite)
{
//// Sets the page url where the webpart is located
string pageUrl =
createdSite.RootWeb.RootFolder.WelcomePage;
string targetwebpartTitle = "Shared
Documents";
//// Elevating permission
SPSecurity.RunWithElevatedPrivileges(() =>
{
//// Creates a new SPSite instance for the
sharepoint website
using (SPSite
spsite = new SPSite(createdSite.Url))
{
//// Opens the SPWeb instance based on which
the SPSite was initiated
using (SPWeb
spweb = spsite.OpenWeb())
{
/// Gets the page SPFile object
SPFile pageSPFile = spweb.GetFile(pageUrl);
try
{
//// If file is not checked out then do a check out
if
(pageSPFile.Level != SPFileLevel.Checkout)
{
pageSPFile.CheckOut();
}
//// Gets the SPLimitedWebpartManager instance from the page
SPLimitedWebPartManager limitedWebpartManager =
pageSPFile.GetLimitedWebPartManager(System.Web.UI.WebControls.WebParts.PersonalizationScope.Shared);
//// A temp value to use inside the following for loop
string currentWebpartTitle = string.Empty;
foreach (System.Web.UI.WebControls.WebParts.WebPart webPart in
limitedWebpartManager.WebParts)
{
//// Ignore the closed webpart
if (!webPart.IsClosed)
{
//// Reads the webpart title in the iterated loop
currentWebpartTitle = webPart == null ? string.Empty :
(webPart.Title == null ? string.Empty : webPart.Title);
//// Checks whether current webpart title in iterated loop
is the targeted webpart or not
if (currentWebpartTitle == targetwebpartTitle)
{
//// With the help of reflection gets the View field’s info
System.Reflection.FieldInfo viewFieldInfo =
webPart.GetType().GetField("view",
System.Reflection.BindingFlags.NonPublic |
System.Reflection.BindingFlags.Instance);
//// Ignore and continue loop if view field is null
if (viewFieldInfo == null)
{
continue;
}
//// Cast the view field’s value which was retrieved using
reflection to the SPView
SPView view = viewFieldInfo.GetValue(webPart) as SPView;
if (view.ViewFields.Exists("_UIVersionString"))
view.ViewFields.Delete("_UIVersionString");
/// Updates the view
view.Update();
//// This is optional, need not have to save changes to
webpart, but just to confirm
limitedWebpartManager.SaveChanges(webPart);
break;
}
}
}
}
catch (Exception ex)
{
throw ex;
}
finally
{
if (pageSPFile.Level == SPFileLevel.Checkout)
{
pageSPFile.CheckIn("Removed Version
column", SPCheckinType.MajorCheckIn);
}
}
}
}
});
}
PowerShell script does the same
$deleteField = "_UIVersionString"
$whereToLook = "Shared
Documents"
function HasPageWebPartField()
{
param
(
[Microsoft.SharePoint.SPFile]$Page,
[Microsoft.SharePoint.SPWeb]$Web
)
$localWebVariable = Get-SPWeb -Identity $web.Url
$checkWpm = $localWebVariable.GetLimitedWebPartManager($page.Url, [System.Web.UI.WebControls.WebParts.PersonalizationScope]::Shared)
$checkWp = $checkWpm.WebParts | Where-Object { $_.Title -eq $whereToLook }
$checkList = $localWebVariable.Lists | Where-Object { $_.Title -eq $whereToLook }
if ($wp.ViewGUID -ne $null -and $wp.ViewGUID -ne "")
{
$checkView = $checkList.Views[[Guid]$checkWp.ViewGUID]
$returnVal = $checkView.ViewFields.Exists($deleteField)
}
else
{
$returnVal = $false
}
$checkWpm.Dispose()
$localWebVariable.Dispose()
return $returnVal
}
$web = Get-SPWeb $_.URL
if ([Microsoft.SharePoint.Publishing.PublishingWeb]::IsPublishingWeb($web))
{
[Microsoft.SharePoint.Publishing.PublishingWeb]$publishingWeb = [Microsoft.SharePoint.Publishing.PublishingWeb]::GetPublishingWeb($web)
$page = $publishingWeb.DefaultPage
if ($page.CheckedOutDate -eq $null)
{
$hasField = HasPageWebPartField -Page $page -Web $web
if ($hasField)
{
$page.CheckOut()
$wpm = $web.GetLimitedWebPartManager($page.Url, [System.Web.UI.WebControls.WebParts.PersonalizationScope]::Shared)
$wp = $wpm.WebParts | Where-Object { $_.Title -eq $whereToLook }
$list = $web.Lists | Where-Object { $_.Title -eq $whereToLook }
$view = $list.Views[[Guid]$wp.ViewGUID]
$view.ViewFields.Delete($deleteField)
$view.Update()
$wpm.SaveChanges($wp)
$page.CheckIn("Removed
Version column. Update via PowerShell",[Microsoft.SharePoint.SPCheckinType]::MajorCheckIn)
}
}
else
{
$message = "Web " + $web.Url + " page
"
+ $page.Name + " was
checked out - to be processed manually."
Write-Host $message -ForegroundColor Red
$script:fileContents += ($message)
$script:fileContents += ("`r`n")
}
}
$web.Close()
