在 C# 中自动化后如何关闭 Outlook [英] How to close outlook after automating it in c#

问题描述

我正在创建一个将 Msg Outlook 文件转换为 pdf 的程序.我所做的是将 Msg 文件导出为 Html，然后将 Html 输出转换为 pdf.这是我的代码:

I am creating a program which converts Msg outlook file into pdf. What I did was export the Msg file into Html then convert the Html output to pdf. This is my code:

Microsoft.Office.Interop.Outlook.Application app = new Microsoft.Office.Interop.Outlook.Application();

string filename = System.IO.Path.GetFileNameWithoutExtension(msgLocation) + ".html";
string attachmentFiles = System.IO.Path.Combine(System.IO.Path.GetTempPath(), System.IO.Path.GetFileNameWithoutExtension(msgLocation) + "_files");
string extractLocation = System.IO.Path.Combine(System.IO.Path.GetTempPath(), filename);

Console.WriteLine(filename);
Console.WriteLine(attachmentFiles);
Console.WriteLine(extractLocation);
var item = app.Session.OpenSharedItem(msgLocation) as Microsoft.Office.Interop.Outlook.MailItem;
item.SaveAs(extractLocation, Microsoft.Office.Interop.Outlook.OlSaveAsType.olHTML);

int att = item.Attachments.Count;
if (att > 0)
{
    for (int i = 1; i <= att; i++)
    {
        item.Attachments[i].SaveAsFile(System.IO.Path.Combine(attachmentFiles, item.Attachments[i].FileName));
    }
}

app.Quit();
System.Runtime.InteropServices.Marshal.ReleaseComObject(app);

MSG 文件转换为 HTML 工作正常，但为什么 Outlook.exe 仍在运行?我想关闭它，但 app.Quit() 没有关闭应用程序.

The MSG file convertion to HTML is working perfectly, but why is outlook.exe is still running? I want to close it, but app.Quit() doesn't close the app.

推荐答案

问题是 Outlook com 对象保持引用并阻止应用程序关闭.使用以下函数并传递您的应用程序"反对它:

The issue is that the outlook com object is holding on to references and stopping the app from closing. Use the following function and pass your "app" object to it:

private void ReleaseObj(object obj)
{
    try 
    {
        System.Runtime.InteropServices.Marshal.ReleaseComObject(obj);
    }
    finally 
    {
        obj = null;
    }
}

参见 https://blogs.msdn.microsoft.com/deva/2010/01/07/best-practices-how-to-quit-outlook-application-after-automation-from-visual-studio-net-client/

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