如何處理這些對象？

我維護的項目有一堆用戶控件，其中SPWeb和SPSite對象在SPContext的構造函數中初始化。這些對象然後傳遞給其他類。如何處理這些對象？

public MyUserControl : UserControl 
{ 
private SPWeb web; 
public MyUserControl() { web = SPContext.Current.Web; } 
AnotherClass.SomeMethod (web); 
}

日誌填充有以下兩個項：

1）

Detected use of SPRequest for previously closed SPWeb object. Please close SPWeb objects when you are done with all objects obtained from them, but not before. Stack trace: 
at Microsoft.SharePoint.SPListItemCollection.EnsureListItemsData()  
at Microsoft.SharePoint.SPListItemCollection.GetEnumerator()  
at XXXXXXXX.Web.UserControls.TopNavigation.LoadTopImage()  
at XXXXXXXX.Web.UserControls.TopNavigation.OnLoad(EventArgs e)  
at System.Web.UI.Control.LoadRecursive()  
at System.Web.UI.Control.LoadRecursive()  
at System.Web.UI.Control.LoadRecursive()  
at System.Web.UI.Control.LoadRecursive()  
at System.Web.UI.Control.LoadRecursive()  
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)  
at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)  
at System.Web.UI.Page.ProcessRequest()  
at System.Web.UI.Page.ProcessRequest(HttpContext context)  
at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()  
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)  
at System.Web.HttpApplication.PipelineStepManager.ResumeSteps(Exception error)  
at System.Web.HttpApplication.BeginProcessRequestNotification(HttpContext context, AsyncCallback cb)  
at System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context)  
at System.Web.Hosting.PipelineRuntime.ProcessRequestNotificationHelper(IntPtr managedHttpContext, IntPtr nativeRequestContext, IntPtr moduleData, Int32 flags)  
at System.Web.Hosting.PipelineRuntime.ProcessRequestNotification(IntPtr managedHttpContext, IntPtr nativeRequestContext, IntPtr moduleData, Int32 flags)  
at System.Web.Hosting.PipelineRuntime.ProcessRequestNotificationHelper(IntPtr managedHttpContext, IntPtr nativeRequestContext, IntPtr moduleData, Int32 flags)  
at System.Web.Hosting.PipelineRuntime.ProcessRequestNotification(IntPtr managedHttpContext, IntPtr nativeRequestContext, IntPtr moduleData, Int32 flags)

2）

An SPRequest object was not disposed before the end of this thread. To avoid wasting system resources, dispose of this object or its parent (such as an SPSite or SPWeb) as soon as you are done using it. This object will now be disposed. Allocation Id: {444DCCA1-C2F6-493D-9D02-D04F75C6E384} This SPRequest was allocated 
at 
at Microsoft.SharePoint.Library.SPRequest..ctor()  
at Microsoft.SharePoint.SPGlobal.CreateSPRequestAndSetIdentity(SPSite site, String name, Boolean bNotGlobalAdminCode, String strUrl, Boolean bNotAddToContext, Byte[] UserToken, String userName, Boolean bIgnoreTokenTimeout, Boolean bAsAnonymous)  
at Microsoft.SharePoint.SPWeb.InitializeSPRequest()  
at Microsoft.SharePoint.SPWeb.InitWebPublic()  
at Microsoft.SharePoint.SPWeb.get_LanguageCulture()  
at Microsoft.SharePoint.SPWeb.get_Title()  
at XXXXXXXXX.DataAccessUtility.<>c__DisplayClassc.<GetSitesTopNav>b__8()  
at Microsoft.SharePoint.SPSecurity.<>c__DisplayClass4.<RunWithElevatedPrivileges>b__2()  
at Microsoft.SharePoint.Utilities.SecurityContext.RunAsProcess(CodeToRunElevated secureCode)  
at Microsoft.SharePoint.SPSecurity.RunWithElevatedPrivileges(WaitCallback secureCode, Object param)  
at Microsoft.SharePoint.SPSecurity.RunWithElevatedPrivileges(CodeToRunElevated secureCode)  
at XXXXXXXX.GetSitesTopNav(SPSite site, SPWeb Currentweb, String userName)  
at XXXXXXXX.Web.UserControls.TopNavigation.PopulateSiteSelection()  
at XXXXXXXX.Web.UserControls.TopNavigation.OnLoad(EventArgs e)  
at System.Web.UI.Control.LoadRecursive()  
at System.Web.UI.Control.LoadRecursive()  
at System.Web.UI.Control.LoadRecursive()  
at System.Web.UI.Control.LoadRecursive()  
at System.Web.UI.Control.LoadRecursive()  
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)  
at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)  
at System.Web.UI.Page.ProcessRequest()  
at System.Web.UI.Page.ProcessRequest(HttpContext context)  
at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()  
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)  
at System.Web.HttpApplication.PipelineStepManager.ResumeSteps(Exception error)  
at System.Web.HttpApplication.BeginProcessRequestNotification(HttpContext context, AsyncCallback cb)  
at System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context)  
at System.Web.Hosting.PipelineRuntime.ProcessRequestNotificationHelper(IntPtr managedHttpContext, IntPtr nativeRequestContext, IntPtr moduleData, Int32 flags)  
at System.Web.Hosting.PipelineRuntime.ProcessRequestNotification(IntPtr managedHttpContext, IntPtr nativeRequestContext, IntPtr moduleData, Int32 flags)  
at System.Web.Hosting.PipelineRuntime.ProcessRequestNotificationHelper(IntPtr managedHttpContext, IntPtr nativeRequestContext, IntPtr moduleData, Int32 flags)  
at System.Web.Hosting.PipelineRuntime.ProcessRequestNotification(IntPtr managedHttpContext, IntPtr nativeRequestContext, IntPtr moduleData, Int32 flags)

正在經過距SPContext.Current.Web獲得的URL 。用正確的方式？有什麼建議麼？

來源

2012-03-14 raksahb

試試這個MSDN論壇鏈接 - http://social.msdn.microsoft.com/Forums/et-EE/sharepoint2010general/thread/5ca4659a-d89d-44b1-9729-21854d715c7d

PS - 請註明此爲答案，如果回覆幫你。

來源

2012-03-21 08:22:04 bkk

我覺得Roger Lamb的這篇博客很有用，當我需要了解處理Sharepoint對象模型的模式時。 http://blogs.msdn.com/b/rogerla/archive/2008/02/12/sharepoint-2007-and-wss-3-0-dispose-patterns-by-example.aspx – bkk 2012-03-21 08:25:52

如何處理這些對象？

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