Creating Setup and Deployment Projects in VS2005.NET

     最近我们团队完成了项目开发,要我做一个安装程序.以前从来没有进行过,哈哈^先花了半天学习,最后做了一个安装程序.但是出现在了一个问题,希望能得到高手的指教:
在我安装在最后的关头出现了这样的错误:未将对象设置引用到对象的实例!


安装程序又无法进行调试,找了好多次还是找不到哪里出现了问题.后面附上了安装类库的代码:
我的解决方案:


UI设计(1):


UI设计(2):


类库的代码有点长:

using System;
using System.IO;
using System.Data;
using System.Configuration.Install;
using System.DirectoryServices;
using System.Reflection;
using System.Data.SqlClient;
using System.Collections.Specialized;
using System.Xml;
using Microsoft.Win32;
using System.ComponentModel;
using System.Management;
using System.Collections;

namespace EightySharplibary
{
    [RunInstaller(true)]
    public partial class EightySharpInstaller : Installer
    {
        private SqlConnection sqlConn = null;
        private SqlCommand Command;
        private static string DBName;
        private string AnotherDB;
        private string ServerName;
        private string AdminName;
        private string AdminPwd;
        private string iis;
        private string port;
        private string dir;
        private string _target;
        private DirectoryEntry _iisServer;
        private ManagementScope _scope;
        private ConnectionOptions _connection;

        public EightySharpInstaller()
        {
            InitializeComponent();
        }
        //connect the db.
        ConnectionDatabase#region ConnectionDatabase
        private bool ConnectDatabase()
        {
            if (Command.Connection.State != ConnectionState.Open)
            {
                try
                {
                    Command.Connection.Open();
                }
                catch 
                {
                    return false;
                }
            }
            return true;
        }
        #endregion
        //Get the db file 
        GetSQLFiles#region GetSQLFiles 
        private string GetSql(string name)
        {
            try
            {
                Assembly ass = Assembly.GetExecutingAssembly();
                Stream strm = ass.GetManifestResourceStream(ass.GetName().Name + "." + name);
                StreamReader reader = new StreamReader(strm);
                return reader.ReadToEnd();
            }
            catch (Exception exp)
            {
                throw new ApplicationException(exp.Message);
            }
        }
        #endregion
        //ExecuteSQL statement
        Execute sql statement.#region Execute sql statement.
        private void ExecuteSql(string DataBaseName, string sqlstring)
        {
            Command = new SqlCommand(sqlstring, sqlConn);
            if (ConnectDatabase())
            {
                try
                {
                    Command.Connection.ChangeDatabase(DataBaseName);
                    Command.ExecuteNonQuery();
                }
                catch (Exception exp)
                {
                    throw new Exception(exp.Message);
                }
                finally
                {
                    Command.Connection.Close();
                }
            }
        }
        #endregion
        //Create database and attach the files.
        Create DB and attach the file.#region Create DB and attach the file.
        protected bool CreateDBAndTable(string DBName)
        {
            AnotherDB = DBName + "Profile";
            bool result = false;
            try
            {
                ExecuteSql("master", "USE MASTER IF EXISTS (SELECT NAME FROM SYSDATABASES WHERE NAME='" + DBName + "') DROP DATABASE " + DBName);
                ExecuteSql("master", "CREATE DATABASE " + DBName);
                ExecuteSql(DBName, GetSql("HBSTPSQL.txt"));

                ExecuteSql("master", "USE MASTER IF EXISTS (SELECT NAME FROM SYSDATABASES WHERE NAME='" + AnotherDB + "') DROP DATABASE " + AnotherDB);
                ExecuteSql("master", "CREATE DATABASE " + AnotherDB);
                ExecuteSql(AnotherDB, GetSql("ASPNETDBSQL.txt"));
                result = true;
            }
            catch 
            {
                File.Delete(dir + @"HBSTPSQl.txt");
                File.Delete(dir + @"ASPNETDBSQL.txt");
                result = false;
            }
            return result;
        }
        #endregion
        RestoreDB Backup the data from the files .bak.#region RestoreDB Backup the data from the files .bak.
        protected bool RestoreDB(string DBName)
        {
            AnotherDB = DBName + "Profile";
            dir = this.Context.Parameters["targetdir"];
            bool Restult = false;

            string MSQL1 = "RESTORE DATABASE " + DBName +
                " FROM DISK = '" + dir + @"HBSTPDB.bak' " +
                " WITH MOVE 'HBSTPDB' TO '" + @"C:"Program Files"Microsoft SQL Server"MSSQL.1"MSSQL"Data"" + DBName + ".mdf', " +
                " MOVE 'HBSTPDB_log' TO '" + @"C:"Program Files"Microsoft SQL Server"MSSQL.1"MSSQL"Data"" + DBName + ".ldf' ";
            string MSQL2 = "RESTORE DATABASE " + AnotherDB +
               " FROM DISK = '" + dir + @"ASPNETDB.bak' " +
               " WITH MOVE 'ADPNETDB' TO '" + @"C:"Program Files"Microsoft SQL Server"MSSQL.1"MSSQL"Data"" + AnotherDB + ".mdf', " +
               " MOVE 'aspnetdb_log' TO '" + @"C:"Program Files"Microsoft SQL Server"MSSQL.1"MSSQL"Data"" + AnotherDB + ".ldf' ";
            try
            {
                ExecuteSql("master", "USE MASTER IF EXISTS (SELECT NAME FROM SYSDATABASES WHERE NAME='" + DBName + "') DROP DATABASE " + DBName);
                ExecuteSql("master", MSQL1);
                ExecuteSql("master", "USE MASTER IF EXISTS (SELECT NAME FROM SYSDATABASES WHERE NAME='" + AnotherDB + "') DROP DATABASE " + AnotherDB);
                ExecuteSql("master", MSQL2);

                Restult = true;
            }
            finally
            {
                // delete the backup files
                try
                {
                    File.Delete(dir + @"HBSTPDB.bak");
                    File.Delete(dir + @"ASPNETDB.bak");
                }
                catch
                {
                }
            }
            return Restult;
        }
        #endregion
        //Modify the web.config 
        Modify teh web.config connectionstring.#region   Modify teh web.config connectionstring.
        private bool WriteWebConfig()
        {
            FileInfo fileInfo = new FileInfo(this.Context.Parameters["targetdir"] + "/web.config");
            if (!fileInfo.Exists)
            {
                throw new InstallException("Missing config file:" + this.Context.Parameters["targetdir"] + "/web.config");
            }       
        XmlDocument xmldoc = new XmlDocument();
        xmldoc.Load(fileInfo.FullName);
        bool connection1 = false;
        bool connection2 = false;
        bool foundIt = connection1 && connection2;
        foreach(XmlNode node in xmldoc["configuration"]["connectionStrings"])
        {
            if (node.Name == "add")
            {
                if (node.Attributes.GetNamedItem("name").Value == "HBSTPConnection")
                {
                    node.Attributes.GetNamedItem("connectionString").Value = String.Format("Persist Security Info=False; Data Source={0}; Initial Catalog={1}; User ID={2}; Password={3}; Packet Size=4096; Pooling=true; Max Pool Size=100; Min Pool Size=1", ServerName, DBName, AdminName, AdminPwd);
                    connection1 = true;
                }
                if (node.Attributes.GetNamedItem("name").Value == "ConnectionString")
                {
                    node.Attributes.GetNamedItem("connectionString").Value = String.Format("Persist Security Info=False; Data Source={0};Initial Catalog={1}; User ID={2}; Password={3}; Packet Size=4096; Pooling=true; Max Pool Size=100; Min Pool Size=1", ServerName, AnotherDB, AdminName, AdminPwd);
                    connection2 = true;
                }
            }
        }
        if (!foundIt)
        {
            throw new InstallException("Error when writing the config file: web.config");
        }
        xmldoc.Save(fileInfo.FullName);
        return foundIt;      
        }
        #endregion
        //Write the registrykey
        Write RegistryKey.#region   Write RegistryKey.
        private void WriteRegistryKey()
        {
            //Write registrykey
            RegistryKey rote = Registry.LocalMachine;
            RegistryKey EightySharp = rote.OpenSubKey("SOFTWARE", true);
            RegistryKey thirdSub = EightySharp.CreateSubKey("EightySharp");
            thirdSub.SetValue("FilePath", "80Sharp");
        }
        #endregion
        //Connect the iis server
        Connect iis server#region Connect iis server
        public bool Connect()
        {
            if (iis == null)
            {
                return false;
            }
            try
            {
                _iisServer = new DirectoryEntry("IIS://" + iis + "/W3SVC/1");
                _target = iis;
                _connection = new ConnectionOptions();
                _scope = new ManagementScope(@"""" + iis + @""root"MicrosoftIISV2", _connection);
                _scope.Connect();
            }
            catch
            {
                return false;
            }
            return IsConnected();
         }
      //
        public bool IsConnected()
        {
            if (_target == null || _connection == null || _scope == null)
            {
                return false;
            }
            return _scope.IsConnected;
        }
        #endregion
        //Is Web site Exists
        Is web site exists#region  Is web site exists
        public bool IsWebSiteExists(string serverID)
        {
            bool result = false;
            try
            {
                string siteName = "W3SVC/" + serverID;
                ManagementObjectSearcher searcher = new ManagementObjectSearcher(_scope, new ObjectQuery("SELECT * FROM IIsWebServer"), null);
                ManagementObjectCollection webSites = searcher.Get();
                foreach (ManagementObject webSite in webSites)
                {
                    if ((string)webSite.Properties["Name"].Value == siteName)
                    {
                        result = true ;
                    }
                    return false;
                }
            }
            catch
            {
                result = false;
            }
            return result;
        }
        #endregion

        //get next serverid
        Get next openID#region Get next openID
        private int GetNextOpenID()
        {
            DirectoryEntry iisComputer = new DirectoryEntry("IIS://localhost/w3svc");
            int nextID = 0;
            foreach (DirectoryEntry iisWebServer in iisComputer.Children)
            {
                string sname = iisWebServer.Name;
                try
                {
                    int name = int.Parse(sname);
                    if (name > nextID)
                    {
                        nextID = name;
                    }
                }
                catch
                {
                }
            }
            return ++nextID;
        }
        #endregion
        //create web site
        Create Web site#region Create Web site
        public string CreateWebSite(string serverID, string servercomment, string defaultVrootPath, string HostName, string IP, string Port)
        {
            try
            {
                ManagementObject oW3SVC = new ManagementObject(_scope, new ManagementPath(@"IIsWebService='W3SVC'"), null);
                if (IsWebSiteExists(serverID))
                {
                    return "Site Already exists";
                }
                ManagementBaseObject inputParameters = oW3SVC.GetMethodParameters("CreateNewSite");
                ManagementBaseObject[] serverBinding = new ManagementBaseObject[1];
                serverBinding[0] = CreateServerBinding(HostName, IP, Port);
                inputParameters["ServerComment"] = servercomment;
                inputParameters["ServerBindings"] = serverBinding;
                inputParameters["PathOfRootVirtualDir"] = defaultVrootPath;
                inputParameters["ServerId"] = serverID;
                ManagementBaseObject outParameter = null;
                outParameter = oW3SVC.InvokeMethod("CreateNewSite", inputParameters, null);

                //start the web site.
                string serverName = "W3SVC/" + serverID;
                ManagementObject webSite = new ManagementObject(_scope, new ManagementPath(@"IIsWebServer='" + ServerName + "'"), null);
                webSite.InvokeMethod("Start", null);
                return (string)outParameter.Properties["ReturnValue"].Value;
            }
            catch (Exception exp)
            {
                return exp.Message;
            }
        }
        public ManagementObject CreateServerBinding(string HostName, string IP, string Port)
        {
            try
            {
                ManagementClass classBinding = new ManagementClass(_scope, new ManagementPath("ServerBinding"), null);
                ManagementObject serverBinding = classBinding.CreateInstance();
                serverBinding.Properties["Hostname"].Value = HostName;
                serverBinding.Properties["IP"].Value = IP;
                serverBinding.Properties["Port"].Value = port;
                serverBinding.Put();
                return serverBinding;
            }
            catch
            {
                return null;
            }
        }
        #endregion
        //Install
        Install#region Install
        public override void Install(System.Collections.IDictionary stateSaver)
        {
            base.Install(stateSaver);

            dir = this.Context.Parameters["targetdir"];
            DBName = this.Context.Parameters["dbname"].ToString();
            ServerName = this.Context.Parameters["server"].ToString();
            AdminName = this.Context.Parameters["user"].ToString();
            AdminPwd = this.Context.Parameters["pwd"].ToString();
            iis = this.Context.Parameters["iis"].ToString();
            port = this.Context.Parameters["port"].ToString();

            this.sqlConn.ConnectionString = "Packet size=4096;User ID=" + AdminName + ";Password=" + AdminPwd + ";Data Source=" + ServerName + ";Persist Security Info=False;Integrated Security=false";
            //this.sqlConn.ConnectionString = "Packet size=4096; Data Source=" + ";database=master; Persist Security Info=False; Integrated Security=SSPI";
            //Execute the sql create database.
            if (!CreateDBAndTable(DBName))
            {
                throw new ApplicationException("A serions error been occured when create database!.");
            }
             //restore the database.
            if (!RestoreDB(DBName))
            {
                throw new ApplicationException("A serions error been occured when backup the data！");
            }
            // create web site
            Connect();
            string serverID = GetNextOpenID().ToString();
            string serverComment = "HBSTP";
            string defaultVrootPath = this.Context.Parameters["targetdir"];
            if (defaultVrootPath.EndsWith(@"""))
            {
                defaultVrootPath = defaultVrootPath.Substring(0, defaultVrootPath.Length - 1);
            }
            string HostName = this.Context.Parameters["hostname"];
            string IP = this.Context.Parameters["ip"];
            string Port = port;
            string sReturn = CreateWebSite(serverID, serverComment, defaultVrootPath, HostName, IP, Port);

            // modify web.config
            if (!WriteWebConfig())
            {
                throw new ApplicationException("setting the connection string falied");
            }
            // write the registrykey!
            WriteRegistryKey();        
        }
        #endregion
        Uninstall did not complete#region Uninstall did not complete
        public override void Uninstall(IDictionary savedState)
        {
            if (savedState == null)
            {
                throw new ApplicationException("Uninstall failed！");
            }
            else
            {
                base.Uninstall(savedState);
            }
        }
        #endregion
    }
}

希望高手指点迷津.
感谢
(徐智雄):http://www.cnblogs.com/xuzhixiong/archive/2006/06/27/437056.html
http://weblogs.asp.net/scottgu/archive/2005/11/06/429723.aspx
http://www.c-sharpcorner.com/UploadFile/vishnuprasad2005/SetupProjects12022005022406AM/SetupProjects.aspx
SetupProjects12022005022406AM/SetupProjects.aspx