VSTO Outlook 2007 外接程序启动抛出 System.Runtime.InteropServices.COMException (0x80020009)：无法完成操作。您尚未连接

发布于 2024-12-01 02:31:26 字数 1202 浏览 1 评论 0原文

我们正在使用 VSTO 构建 Outlook 2007 加载项。我们在插件的初始化逻辑中有代码，用于检索与 Application.Session 关联的 MAPIOBJECT。有问题的代码如下：

public partial class ThisAddIn
{
    private void ThisAddIn_Startup(object sender, System.EventArgs e)
    {
        try
        {
            var addIn = Globals.ThisAddIn;
            var application = addIn.Application;
            var mapiObject = application.Session.MAPIOBJECT;
        }
        catch (Exception e)
        {
            // HANDLE ERROR
        }
    }

    private void ThisAddIn_Shutdown(object sender, System.EventArgs e)
    {
                        // ...
    }

    // Other VSTO generated code

}

这段代码在大多数情况下都非常有效。但是，当我们尝试从 Session 属性访问 MAPIOBJECT 属性时，我们会遇到以下错误：

System.Runtime.InteropServices.COMException (0x86220009): Cannot complete the operation. You are not connected.
  at Microsoft.Office.Interop.Outlook._NameSpace.get_MAPIOBJECT()
  at MyTestAddIn.ThisAddIn.ThisAddIn_Startup(object, System.EventArgs) in C:\foo\MyTestAddIn\ThisAddIn.cs:line 19

我们无法理解为什么代码大部分时间都有效，但有时会失败。我们认为此问题是由于网络中断/用户离线工作造成的。我们尝试了多种连接状态组合，包括故意从 Outlook 脱机工作，以及在 Outlook 即将加载加载项时断开网络电缆。但我们还无法重现该问题。

任何帮助表示赞赏。

原文

We are building an Outlook 2007 add-in using VSTO. We have code in the initialization logic of the addin which retrieves the MAPIOBJECT associated with the Application.Session. The code in question is as follows:

public partial class ThisAddIn
{
    private void ThisAddIn_Startup(object sender, System.EventArgs e)
    {
        try
        {
            var addIn = Globals.ThisAddIn;
            var application = addIn.Application;
            var mapiObject = application.Session.MAPIOBJECT;
        }
        catch (Exception e)
        {
            // HANDLE ERROR
        }
    }

    private void ThisAddIn_Shutdown(object sender, System.EventArgs e)
    {
                        // ...
    }

    // Other VSTO generated code

}

This code works like a charm for most times. However, we run into the following error when we attempt to access the MAPIOBJECT property from the Session property:

System.Runtime.InteropServices.COMException (0x86220009): Cannot complete the operation. You are not connected.
  at Microsoft.Office.Interop.Outlook._NameSpace.get_MAPIOBJECT()
  at MyTestAddIn.ThisAddIn.ThisAddIn_Startup(object, System.EventArgs) in C:\foo\MyTestAddIn\ThisAddIn.cs:line 19

We are unable to understand why the code works most of the time but fails at a few. We thought this issue was due a network interruption/user working offline. We tried several combinations of connection states with intentionally working offline from Outlook to disconnecting the network cable when Outlook is about to load the add-in. But we have not been able to reproduce the problem.

Any help is appreciated.

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