.net - 尝试加载自定义配置时 Visual Studio 安装和部署项目中的 FileNotFoundException

Question

我正在尝试在我的设置和部署项目中调用自定义操作，以更新我的应用上 app.config 中的一些项目。我已经以通常的方式结束了自定义配置部分，例如:

[ConfigurationProperty("serviceProvider", IsRequired = true)]
public string ServiceProvider
{
    get { return (string)base["serviceProvider"]; }
    set { base["dataProviderFactory"] = value; }
}

我已将自定义操作设置为在安装的安装部分中调用，就在 base.Install(stateSaver) 之后。代码是:

string exePath = string.Format("{0} MyApp.exe", Context.Parameters["DP_TargetDir"]);
SysConfig.Configuration config = ConfigurationManager.OpenExeConfiguration(exePath);
Configuration. MyApp section = Configuration.MyApp)config.GetSection("MyApp");

当我运行这个时，我得到这个错误:

System.Configuration.ConfigurationErrorsException: An error occurred creating the configuration section handler for MyApp: Could not load file or assembly 'MyCompany. MyApp.Configuration' or one of its dependencies. The system cannot find the file specified. (C:\Program Files\MyCompany\MyApp\MyApp.exe.config line 5) ---> System.IO.FileNotFoundException: Could not load file or assembly 'MyCompany.MyApp.Configuration' or one of its dependencies. The system cannot find the file specified.

配置中的第 5 行是:

<section name="MyApp"
    type="MyCompany.MyApp.Configuration.MyApp, MyCompany.MyApp.Configuration"
    requirePermission="false" />

带有安装程序代码的类库(该库中唯一的类)具有对配置程序集的引用。

我在这里遗漏了什么非常明显的东西吗？我无法弄清楚为什么找不到配置的引用。

非常感谢任何帮助/建议。

Answer 1

我设法在 MSDN 上找到了一些代码，这些代码提供了一种有效的(尽管被黑了)方法来做到这一点。链接在这里:ConfigurationManager, custom config, and installutil / path searching problem .

如果不是因为能够在建议的帮助下进行调试，就不会找到它，所以感谢你们俩。

作为引用，我的最终安装代码是:

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

    string targetDirectory = Context.Parameters["DP_TargetDir"];
    stateSaver.Add("TargetDir", targetDirectory);

    string exePath = Path.Combine(targetDirectory, "MyApp.exe");

    System.Diagnostics.Debugger.Break();

    ResolveEventHandler tempResolveEventHandler =
        (sender, args) =>
            {
                string simpleName = new AssemblyName(args.Name).Name;
                string path = Path.Combine(targetDirectory, simpleName + ".dll");
                return File.Exists(path)
                    ? Assembly.LoadFrom(path)
                    : null;
            };

    try
    {
        // hook up asm resolve handler  
        AppDomain.CurrentDomain.AssemblyResolve += tempResolveEventHandler;

        System.Configuration.Configuration config = ConfigurationManager.OpenExeConfiguration(exePath);
        Configuration.MyApp section = (Configuration.MyApp) config.Sections["MyApp"];

        if (section != null)
        {
            // "ApplicationSettings.DefaultDatabasePath" is the custom config value I'm updating
            section.ApplicationSettings.DefaultDatabasePath = Environment.GetFolderPath(Environment.SpecialFolder.CommonApplicationData);
            config.Save();
        }
    }
    finally
    {
        // remove asm resolve handler.  
        AppDomain.CurrentDomain.AssemblyResolve -= tempResolveEventHandler;
    }

}