protected override void OnBeforeInstall(System.Collections.IDictionary savedState)
        {
            base.OnBeforeInstall(savedState);
           if (一定结果)
            {
            base.Uninstall(savedState);
            或者这样//this.Uninstall(savedState);
//如果判断结果是真，则执行这句，就是中止继续安装，回到开始状态，现在遇到的问题，他会抛出一个异常对话框（上面两种写法都是），然后点击确定，则这安装程序回到安装程序的初始状态即终止了继续安装，达到了终止继续安装的效果，但是这个异常对话框怎么去掉阿，或是base.Uninstall(savedState);这样写在这里就不对，那位做过这块的，给点提示，谢谢！

            }
        }

现在的问题就是在Installer这里面根据条件终止正在安装的程序，回滚到安装的初时状态？

没做过

我打算在做安装程序中加一个输入序列号的页面，判断如果输入错误，就不让它安装下去了。怎么做也不行！

using System;
using System.Collections;
using System.Collections.Generic;
using
using System.Configuration.Install;
using System.Linq;


namespace WebSetupConponent
{
    [RunInstaller(true)]
    public partial class Installer1 : Installer
    {
        public Installer1()
        {
            InitializeComponent();

            this.BeforeInstall += new InstallEventHandler(Installer1_BeforeInstall);
            this.AfterInstall += new InstallEventHandler(Installer1_AfterInstall);

             += new InstallEventHandler(Installer1_Committing);
             += new InstallEventHandler(Installer1_Committed);

            this.BeforeUninstall += new InstallEventHandler(Installer1_BeforeUninstall);
            this.AfterUninstall += new InstallEventHandler(Installer1_AfterUninstall);
        }

        private void Installer1_BeforeInstall(object sender, InstallEventArgs e)
        {

        }
        private void Installer1_AfterInstall(object sender, InstallEventArgs e)
        {
            Form1 _FC = new Form1();
            _FC.ShowDialog();

            if (_FC.DialogResult == System.Windows.Forms.DialogResult.OK)
            {
                //继续安装程序
            }
            else
            {
                //退出安装程序
            }
        }
        private void Installer1_Committing(object sender, InstallEventArgs e)
        {

        }
        private void Installer1_Committed(object sender, InstallEventArgs e)
        {

        }
        private void Installer1_BeforeUninstall(object sender, InstallEventArgs e)
        {

        }
        private void Installer1_AfterUninstall(object sender, InstallEventArgs e)
        {

        }

        protected override void OnAfterInstall(IDictionary savedState)
        {
            Form1 _FC = new Form1();
            _FC.ShowDialog();

            if (_FC.DialogResult == System.Windows.Forms.DialogResult.OK)
            {
                base.OnAfterInstall(savedState);
            }
            else
            {
                //base.Uninstall(savedState); 发生错误
                //base.Rollback(savedState);  发生错误               
            }
        }
        public override void Install(IDictionary stateSaver)
        {
            base.Install(stateSaver);
        }
        protected override void OnBeforeInstall(IDictionary savedState)
        {
            Form1 _FC = new Form1();
            _FC.ShowDialog();

            if (_FC.DialogResult == System.Windows.Forms.DialogResult.OK)
            {
                base.OnBeforeInstall(savedState);
            }
            else
            {
                //base.Uninstall(savedState);   发生错误
                //base.Rollback(savedState);    发生错误            
            }
        }
        public override void Uninstall(IDictionary savedState)
        {
            base.Uninstall(savedState);
        }
        public override void Rollback(IDictionary savedState)
        {
            base.Rollback(savedState);
        }
    }
}

看了台湾一位写的文章，也好像没有解决方法？
http://blog.   难道真的没办法做到？