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 { /// /// Event receiver for feature activation /// /// Feature properties passed from SharePoint 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()); } } /// /// reset web feature(create webpartentries) and site feautre(add webpart into pages) /// /// /// 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); } } /// /// activate or deactivate site feature /// /// /// /// /// 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); } /// /// Delete duplicated all webparts /// /// private void DeleteDuplicatedWebparts(SPWeb thisWeb) { //delete all webpart. Collection existWebpartTitles = new Collection (); 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 - 1; i >= 0; 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(); } /// /// Delete all webpartentries in KS project /// /// private void DeleteWebpartEntries(SPWeb rootWeb) { // delete Web Part template files List FilesToDelete = new List (); // 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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