如何解决抛出“尝试访问已卸载的AppDomain”后,Outlook崩溃例外
| 我已经使用c#3.5,VSTO和Visual Studio 2008 for Outlook 2003开发了一个Outlook加载项。 该代码几乎可以正常工作,但是有时Outlook抛出“尝试访问已卸载的AppDomain。”异常后会崩溃。 异常stackTrace:03/17/2011 8:17:05 AM : DoSomething_Outlook_Startup:
exception:The current build operation (build key Build
Key[Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.ExceptionPolicyImpl,DoSomething Notify Policy])
Failed: Attempted to access an unloaded AppDomain.
(Strategy type ConfiguredobjectStrategy,index 2)
at Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.ExceptionPolicy.GetExceptionPolicy(Exception exception,String policyName,ExceptionPolicyFactory factory)
at Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.ExceptionPolicy.HandleException(Exception exceptionToHandle,ExceptionPolicyFactory policyFactory)
at Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.ExceptionPolicy.HandleException(Exception exceptionToHandle,String policyName)
at DoSomething.OutlookAddIn.DoSomething_Outlook.PaintMainMenu(Application objApp)
at DoSomething.OutlookAddIn.DoSomething_Outlook.DomeSomething_Outlook_Startup(Object sender,EventArgs e)
Outlook加载项代码:
//Startup handler
private void DoSomeThing_Outlook_Startup(object sender,System.EventArgs e)
{
try
{
applicationObject = this.Application;
..
..
..
PaintMainMenu(applicationObject);
}
catch (Exception ex)
{
//Exception being thrown from PaintMainMenu is handled here
//
Logger.Log(\"DoSomething_Outlook_Startup: exception:\" + ex.Message + Environment.NewLine + ex.StackTrace);
}
}
//Method to add DoSomething menu item to File menu
private void PaintMainMenu(outlook.application objApp)
{
try
{
objApp.ActiveExplorer().CommandBars[\"File\"].Reset();
menubar = objApp.ActiveExplorer().CommandBars.ActiveMenuBar;
Office.CommandBarPopup cbc = (Office.CommandBarPopup)
menubar.FindControl
(Office.MsoControlType.msoControlPopup,30002,Missing.Value,Missing.Value);
if ((menubar != null))
{
_DoSomething = (Office.CommandBarButton)cbc.Controls.Add(
Office.MsoControlType.msoControlButton,6,true);
if (_DoSomething != null)
{
_DoSomething.Tag = AddInConstants.C_Menubar_Menu_Tag;
_DoSomething.Caption = AddInConstants.C_Menubar_Menu_Caption;
_DoSomething.Click += new _CommandBarButtonEvents_ClickEventHandler(DoSomething_Click);
_DoSomething.Enabled = false;
}
}
}
catch (Exception ex)
{
//below line throws \"Attempted to access an unloaded AppDomain.\"
bool rethrow = ExceptionPolicy.HandleException(ex,AddInConstants.C_Global_NotifyPolicy);
if (rethrow)
throw;
}
}
提前致谢,
赫曼特解决方法
这很可能是比赛条件。
您正在尝试向Outlook菜单中添加一些内容。如果您的代码在菜单加载之前运行,则会出现此错误。
您可以尝试在代码中稍等一下,以确保菜单已加载。
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