取消以编程方式启动的SQL Server Express安装

由于SQL Server安装是可选的,因此我没有将其作为安装程序的先决条件。相反,我只是将 sqlexpr32.exe 在“我的安装”介质中安装,并使用适当的命令行参数以编程方式启动它,以便执行自动安装。(注意:我使用的是/qb命令行标志,因此安装不是静默的, ).万一有人想知道,我就跟着 this Microsoft article

// All this runs on a background thread so the user
// can cancel my app's setup at any time

// Launch the installer
Process setupProcess = new Process();
setupProcess.StartInfo.FileName = "sqlexpr32.exe";
setupProcess.StartInfo.Arguments = " a bunch of command line args here";
setupProcess.StartInfo.UseShellExecute = false; // to avoid a shell window
setupProcess.Start();

// At this point the SQL Server installer is running

// Monitor the process on 2-second intervals:
while (!setupProcess.WaitForExit(2000))
{
    if(WasCancelled) // flag that is set when the user cancels my app's setup
    {
        // This following line is my problem. Sending CloseMainWindow does not 
        // seem to work. The SQL Server installer just keeps running.
        setupProcess.CloseMainWindow();
        setupProcess.WaitForExit();
        break;
    }
} 

// After this point I build a results report for the user. 
// My app's installer does not yet quit even if it was canceled.

所以我的问题是:

这一行似乎没有任何作用:

setupProcess.CloseMainWindow();

这也不起作用:

setupProcess.Close(); // This closes my handle. Not the target process.

很明显,我不想仅仅终止进程,因为我可能会让用户的机器处于一种不太理想的状态,最好的情况是有大量垃圾文件,或者更糟的是,安装已损坏。

有什么想法吗?发送按键还是模拟用户点击?还是希望能少点麻烦?

编辑:

我想我已经找到了原因 CloseMainWindow 不起作用:

• 我开始的过程( sqlexpr32.exe 真实的 setup.exe 作为子进程。所以这个问题变得更加困难=(