用Feature的方式删除SharePoint2010的Page中重复的WebPart。

代码如下所示:

public class SupportCenterDuplicatedWebpartRemovalFeatureReceiver : FnxFeatureReceiver
{
/// <summary>
/// Event receiver for feature activation
/// </summary>
/// <param name="properties">Feature properties passed from SharePoint</param>
public override void FeatureActivated(SPFeatureReceiverProperties properties)
{
base.FeatureActivated(properties);
if (properties == null)
{
throw new ArgumentNullException("properties");
} SPFeatureScope scope = properties.Feature.Definition.Scope;
SPSite parentSite = null;
SPWeb thisWeb = null;
SPWeb rootWeb = null; // Note: Scope should be "Web" for Support Center Pages feature but handler is here in case of future deployment scope change
if (scope == SPFeatureScope.Site)
{
parentSite = properties.Feature.Parent as SPSite;
if (parentSite != null)
{
rootWeb = parentSite.RootWeb;
thisWeb = rootWeb;
}
}
else if (scope == SPFeatureScope.Web)
{
thisWeb = properties.Feature.Parent as SPWeb; if (thisWeb != null)
{
parentSite = thisWeb.Site; if (parentSite != null)
{
rootWeb = parentSite.RootWeb;
}
}
} try
{
if (rootWeb != null)
{
if (thisWeb != null)
{
// we only add the navaigation to support subsite; otherwise the 2nd level menu will mess up
if (!thisWeb.Url.ToLower().Contains(KSConstants.SUPPORTER_SITE_URL.ToLower())) return;
DeleteDuplicatedWebparts(thisWeb);
DeleteWebpartEntries(rootWeb);
ResetFeatures(parentSite);
}
}
}
catch (SPException ex)
{
Trace.WriteLine(ex.Message);
LoggingService.LogError("Features", ex.ToFormattedExceptionString());
}
} /// <summary>
/// reset web feature(create webpartentries) and site feautre(add webpart into pages)
/// </summary>
/// <param name="thisWeb"></param>
/// <param name="parentSite"></param>
private void ResetFeatures(SPSite parentSite)
{
Guid siteFeatureId = new Guid("668ce347-97bb-4048-ae96-95f2c3a4cc42");
var siteFeature = parentSite.Features.SingleOrDefault(sf => sf.DefinitionId == siteFeatureId);
if (siteFeature == null)
{
ActivateOrReactiveSiteFeature(parentSite, siteFeatureId, true, true);
}
else
{
ActivateOrReactiveSiteFeature(parentSite, siteFeatureId, false, true);
ActivateOrReactiveSiteFeature(parentSite, siteFeatureId, true, true);
}
} /// <summary>
/// activate or deactivate site feature
/// </summary>
/// <param name="site"></param>
/// <param name="featureGuid"></param>
/// <param name="activate"></param>
/// <param name="force"></param>
private void ActivateOrReactiveSiteFeature(SPSite site, Guid featureGuid, bool activate, bool force)
{
if (activate)//if feature is not activated
{
site.Features.Add(featureGuid, force);
//activate feature
}
else site.Features.Remove(featureGuid, force);
} /// <summary>
/// Delete duplicated all webparts
/// </summary>
/// <param name="thisWeb"></param>
private void DeleteDuplicatedWebparts(SPWeb thisWeb)
{
//delete all webpart.
Collection<string> existWebpartTitles = new Collection<string>();
SPList pageList = thisWeb.Lists["Pages"];
foreach (SPListItem item in pageList.Items)
{
SPFile file = thisWeb.GetFile(thisWeb.Url + "/" + item.Url);
if (file.CheckOutType != Microsoft.SharePoint.SPFile.SPCheckOutType.None)
{
file.UndoCheckOut();
}
file.CheckOut();
if (file != null)
{
existWebpartTitles.Clear();
using (SPLimitedWebPartManager webpartsMng = file.GetLimitedWebPartManager(PersonalizationScope.Shared))
{
for (int i = webpartsMng.WebParts.Count - ; i >= ; i--)
{
//delete condition:
//1. if it is "Content Top 5 WebPart", webpart with same catalog will be deleted.
//2. if it is not "Content Top 5 WebPart", webpart with same title will be deleted.
if (webpartsMng.WebParts[i].Title.Equals("Content Top 5 WebPart", StringComparison.Ordinal))
{
string catagory = (webpartsMng.WebParts[i].WebBrowsableObject as FundsNetwork.KnowledgeAndSupport.WebParts.Top5WebPart.Top5WebPart).Category;
if (!existWebpartTitles.Contains(catagory))
{
existWebpartTitles.Add(catagory);
continue;
}
}
else
{
if (!existWebpartTitles.Contains(webpartsMng.WebParts[i].Title))
{
existWebpartTitles.Add(webpartsMng.WebParts[i].Title);
continue;
}
}
webpartsMng.DeleteWebPart(webpartsMng.WebParts[i]);
}
}
}
file.CheckIn("Delete personal Webparts.");
}
thisWeb.Update();
} /// <summary>
/// Delete all webpartentries in KS project
/// </summary>
/// <param name="rootWeb"></param>
private void DeleteWebpartEntries(SPWeb rootWeb)
{
// delete Web Part template files
List<SPFile> FilesToDelete = new List<SPFile>();
// figure out which Web Part template files need to be deleted
SPList WebPartGallery = rootWeb.Lists["Web Part Gallery"];
if (WebPartGallery != null)
{
foreach (SPListItem WebPartTemplateFile in WebPartGallery.Items)
{
if (WebPartTemplateFile.File.Name.Contains("KnowledgeAndSupport"))
{
FilesToDelete.Add(WebPartTemplateFile.File);
}
}
// delete Web Part template files
foreach (SPFile file in FilesToDelete)
{
if (file.CheckOutType != Microsoft.SharePoint.SPFile.SPCheckOutType.None)
{
file.UndoCheckOut();
}
file.CheckOut();
file.Delete();
file.Update();
rootWeb.Update();
}
}
}
}

。。。。。。

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