C# DirectoryEntry错误？

Question

我有一个Web安装项目。在设置中，我有一个输入字段，用户可以在其中插入连接字符串。当我运行安装程序时，我得到这个错误：

错误1001。未知错误(0x8000x5000)

为了跟踪错误存在的位置，我创建了一个文件，并在每个方法中都向该文件中写入了一些内容。现在我认为错误是由下面这行引起的：

string friendlySiteName = entry.Properties["ServerComment"].Value.ToString();

但是我不知道如何纠正这个问题。我希望你能帮帮我！

代码：

    public override void Install(System.Collections.IDictionary stateSaver)
    {
        base.Install(stateSaver);

        // Retrieve configuration settings
        string targetSite = Context.Parameters["targetsite"];
        string targetVDir = Context.Parameters["targetvdir"];
        string targetDirectory = Context.Parameters["targetdir"];
        string targetConnectionString = Context.Parameters["targetconn"];

        FileStream f = new FileStream("c:\\myfile.txt", FileMode.OpenOrCreate, FileAccess.ReadWrite);
        StreamWriter w = new StreamWriter(f);
        w.WriteLine("targetSite: " + targetSite);
        w.WriteLine("targetVDir: " + targetVDir);
        w.WriteLine("targetDirectory: " + targetDirectory);
        w.WriteLine("targetConnectionString: " + targetConnectionString);
        w.Close();
        w.Dispose();
        f.Close();
        f.Dispose();

        ConfigureWebConfig(targetSite, targetVDir, targetConnectionString);
    }

    void ConfigureWebConfig(string targetSite, string targetVDir, string targetConn)
    {
        try
        {
            // Retrieve "Friendly Site Name" from IIS for TargetSite
            DirectoryEntry entry = new DirectoryEntry("IIS://LocalHost/" + targetSite);

            FileStream f = new FileStream("c:\\myfile.txt", FileMode.Append, FileAccess.Write);
            StreamWriter w = new StreamWriter(f);
            w.WriteLine("In ConfigureWebConfig stap 1 ");
            w.Close();
            w.Dispose();
            f.Close();
            f.Dispose();

            string friendlySiteName = entry.Properties["ServerComment"].Value.ToString();

            f = new FileStream("c:\\myfile.txt", FileMode.Append, FileAccess.Write);
            w = new StreamWriter(f);
            w.WriteLine("In ConfigureWebConfig friendlySiteName: " + friendlySiteName);
            w.Close();
            w.Dispose();
            f.Close();
            f.Dispose();

            // Open Application's Web.Config 
            Configuration config = WebConfigurationManager.OpenWebConfiguration("/" + targetVDir, friendlySiteName);
            addConnectionStringAttribute(targetConn, config);

            f = new FileStream("c:\\myfile.txt", FileMode.Append, FileAccess.Write);
            w = new StreamWriter(f);
            w.WriteLine("In ConfigureWebConfig stap 2 ");
            w.Close();
            w.Dispose();
            f.Close();
            f.Dispose();
            // togleCompilationAttribute(config);

            // Persist web.config settings 
            config.Save();

            f = new FileStream("c:\\myfile.txt", FileMode.Append, FileAccess.Write);
            w = new StreamWriter(f);
            w.WriteLine("In ConfigureWebConfig stap 3 ");
            w.Close();
            w.Dispose();
            f.Close();
            f.Dispose();
        }
        catch (Exception)
        {
            throw;
        }

    }

    private static void addConnectionStringAttribute(string connectionStringValue, Configuration config)
    {
        ConnectionStringSettings appDatabase = new ConnectionStringSettings();

        appDatabase.Name = "dataConnectionString"; 
        appDatabase.ConnectionString = connectionStringValue;
        appDatabase.ProviderName = "System.Data.SqlClient";

        FileStream f = new FileStream("c:\\myfile.txt", FileMode.Append, FileAccess.Write);
        StreamWriter w = new StreamWriter(f);
        w.WriteLine("In addConnectionStringAttribute stap 1 ");
        w.Close();
        w.Dispose();
        f.Close();
        f.Dispose();

        config.ConnectionStrings.ConnectionStrings.Clear();
        config.ConnectionStrings.ConnectionStrings.Add(appDatabase);

        f = new FileStream("c:\\myfile.txt", FileMode.Append, FileAccess.Write);
        w = new StreamWriter(f);
        w.WriteLine("In addConnectionStringAttribute stap 2 ");
        w.Close();
        w.Dispose();
        f.Close();
        f.Dispose();
    }

Answer 1

也许this或this会帮助你。

如果不是这两个原因，则该属性可能不存在。

编辑：

根据this的说法，如果您正在使用Win2k8，如果您收到此错误，则需要启用“IIS元数据库和IIS6配置兼容性”。启用Web服务器角色时，它不会自动安装。

Here是一个相关的问题。

Answer 2

if (m_targetSite.StartsWith("/LM/"))
    m_targetSite = m_targetSite.Substring(4);

在此之前使用上面的代码：

// Retrieve "Friendly Site Name" from IIS for TargetSite  
DirectoryEntry entry = new DirectoryEntry("IIS://LocalHost/" + m_targetSite);
m_siteName = entry.Properties["ServerComment"].Value.ToString();