3

我正在使用 Windows Installer（不是 wix）为我的程序编写安装程序。在某些情况下，我想从我的自定义操作中取消安装过程。此外，我想在我的文本中显示一条错误消息。这是怎么做的？

C#，.net 3.5

4

4 回答 4

3

您可以通过创建错误自定义操作来做到这一点。将错误自定义操作的条件设置为失败条件（如果条件评估为真，则安装将失败）并将消息设置为您的自定义文本。

于 2010-05-11T19:30:06.810 回答
1

为我工作：

上下文：出于某种原因，我需要检查用户是否安装了 3.5SP1，如果没有，请取消安装并重定向到正确的下载页面。

第1步：像这样修改您的安装程序

    [System.Security.Permissions.SecurityPermission(System.Security.Permissions.SecurityAction.Demand)]
    public override void Install(IDictionary stateSaver)
    {
        //Check if the FrameWork 3.5SP1 is installed
        if (mycondition)
        {
            //3.5SP1 is installed, ask for framework install
            if (TopMostMessageBox.Show("body", "title", MessageBoxButtons.YesNo) == DialogResult.Yes)
                System.Diagnostics.Process.Start("http://Microsoft FRW Link");

            WindowHandler.Terminate();
        }
        else
            base.Install(stateSaver);
    }

Step2：使用该代码托管您的MessageBox（我把它带到别处，没有时间自己找到它）

static public class TopMostMessageBox
{
    static public DialogResult Show(string message)
    {
        return Show(message, string.Empty, MessageBoxButtons.OK);
    }

    static public DialogResult Show(string message, string title)
    {
        return Show(message, title, MessageBoxButtons.OK);
    }

    static public DialogResult Show(string message, string title,
        MessageBoxButtons buttons)
    {
        // Create a host form that is a TopMost window which will be the 

        // parent of the MessageBox.

        Form topmostForm = new Form();
        // We do not want anyone to see this window so position it off the 

        // visible screen and make it as small as possible

        topmostForm.Size = new System.Drawing.Size(1, 1);
        topmostForm.StartPosition = FormStartPosition.Manual;
        System.Drawing.Rectangle rect = SystemInformation.VirtualScreen;
        topmostForm.Location = new System.Drawing.Point(rect.Bottom + 10,
            rect.Right + 10);
        topmostForm.Show();
        // Make this form the active form and make it TopMost

        topmostForm.Focus();
        topmostForm.BringToFront();
        topmostForm.TopMost = true;
        // Finally show the MessageBox with the form just created as its owner

        DialogResult result = MessageBox.Show(topmostForm, message, title,
            buttons);
        topmostForm.Dispose(); // clean it up all the way


        return result;
    }
}

第三步：杀死 msiexec

internal static class WindowHandler
{
    internal static void Terminate()
    {
        var processes = Process.GetProcessesByName("msiexec").OrderBy(x => x.StartTime); \\DO NOT FORGET THE ORDERBY!!! It makes the msi processes killed in the right order
        foreach (var process in processes)
        {
            var hWnd = process.MainWindowHandle.ToInt32(); 
            ShowWindow(hWnd, 0); //This is to hide the msi window and only show the popup
            try
            {
                process.Kill();
            }
            catch
            {
            }
        }
    }

    [DllImport("User32")]
    private static extern int ShowWindow(int hwnd, int nCmdShow);
}

用勺子而不是摇壶混合，然后上桌；）

于 2011-10-12T05:29:05.463 回答
1

只需从您的自定义操作中返回 ERROR_INSTALL_USEREXIT 即可。

http://msdn.microsoft.com/en-us/library/windows/desktop/aa368072(v=vs.85).aspx

请参阅以下链接了解如何显示错误消息：

http://msdn.microsoft.com/en-us/library/windows/desktop/aa371247(v=vs.85).aspx

于 2011-10-12T06:22:14.600 回答
0

在任何时候你认为你只需要中止：

throw new InstallException("This user name doesn't exist in this system!.");

安装程序将弹出带有异常消息的用户中止对话框。

于 2021-11-10T04:55:12.933 回答