Я делаю простой импортер новостей для сайта sharepoint, используя задание таймера, которое запускается каждые несколько минут.Приведенный ниже код работает нормально, если я запускаю его в веб-части, но выдает исключение MissingMethodException при запуске в методе выполнения задания таймера.
Полное исключение:
System.MissingMethodException was unhandled by user code
Message="No parameterless constructor defined for this object."
Source="mscorlib"
StackTrace:
at System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandle& ctor, Boolean& bNeedSecurityCheck)
at System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean fillCache)
at System.RuntimeType.CreateInstanceImpl(Boolean publicOnly, Boolean skipVisibilityChecks, Boolean fillCache)
at System.Activator.CreateInstance(Type type, Boolean nonPublic)
at System.Activator.CreateInstance(Type type)
at Microsoft.SharePoint.WebPartPages.SPWebPartSerializer.get_DefaultControl()
at Microsoft.SharePoint.WebPartPages.BinaryWebPartSerializer.Serialize(PersonalizationScope scope)
at Microsoft.SharePoint.WebPartPages.BinaryWebPartSerializer.get_Links()
at Microsoft.SharePoint.WebPartPages.SPWebPartManager.AddWebPartToStore(WebPart webPart, Int32 viewId, String viewGuid)
at Microsoft.SharePoint.WebPartPages.SPWebPartManager.AddWebPartInternal(SPSupersetWebPart superset, Boolean throwIfLocked)
at Microsoft.SharePoint.WebPartPages.SPLimitedWebPartManager.AddWebPartInternal(WebPart webPart, String zoneId, Int32 zoneIndex, Boolean throwIfLocked)
at Microsoft.SharePoint.WebPartPages.SPLimitedWebPartManager.AddWebPart(WebPart webPart, String zoneId, Int32 zoneIndex)
at Microsoft.SharePoint.Publishing.PublishingPage.CopyAllWebParts(String destinationPageUrlServerRelative, SPWeb destinationPageWeb, String sourcePageUrlServerRelative, SPWeb sourcePageWeb, Boolean shouldOverwriteDestinationWebParts)
at Microsoft.SharePoint.Publishing.PublishingPageCollection.<>c__DisplayClass5.<Add>b__0()
at Microsoft.Office.Server.Diagnostics.FirstChanceHandler.ExceptionFilter(Boolean fRethrowException, TryBlock tryBlock, FilterBlock filter, CatchBlock catchBlock, FinallyBlock finallyBlock)
at Microsoft.Office.Server.Diagnostics.ULS.SendWatsonOnExceptionTag(ULSTagID tagID, ULSCat categoryID, String output, Boolean fRethrowException, TryBlock tryBlock, CatchBlock catchBlock, FinallyBlock finallyBlock)
at Microsoft.SharePoint.Publishing.PublishingPageCollection.Add(String name, PageLayout layout)
at Virtua.SharePoint.Mercator.NewsImportJob.Execute(Guid contentDbId)
at Microsoft.SharePoint.Administration.SPTimerJobInvoke.Invoke(TimerJobExecuteData& data, Int32& result)
InnerException:
Код:
var SPWebUri = new Uri("http://.../News/");
using (SPSite site = new SPSite(SPWebUri.AbsoluteUri))
{
using (SPWeb web = site.OpenWeb(SPWebUri.AbsolutePath)) // tried 0x29A's anwser, but it didn't work
// using (SPWeb web = site.OpenWeb())
{
web.AllowUnsafeUpdates = true;
PublishingWeb publishingWeb = PublishingWeb.GetPublishingWeb(web);
SPContentTypeId contentTypeId = new SPContentTypeId("...");
PageLayout layout = publishingWeb.GetAvailablePageLayouts(contentTypeId).First(l => l.Name == "....aspx");
PublishingPageCollection pages = publishingWeb.GetPublishingPages();
var spFilename = "testing";
// error line below
var newPage = pages.Add(String.Format("{0}.aspx", spFilename), layout);
// set newPage's fields
// check-in and publish page
}
}