访问其他应用程序的设置

ConfigurationManager.OpenExeConfiguration的文档有一个读取另一个exe的.config文件并访问AppSettings的示例。在这里:

// Get the application path.
string exePath = System.IO.Path.Combine(
    Environment.CurrentDirectory, "ConfigurationManager.exe");

// Get the configuration file.
System.Configuration.Configuration config =
  ConfigurationManager.OpenExeConfiguration(exePath);

// Get the AppSetins section.
AppSettingsSection appSettingSection = config.AppSettings;

至于检查是否安装了App1,您可以在安装期间在注册表中写入一个值,然后在App2中检查它(并在卸载期间删除该值)。

这是一种痛苦,我可以告诉你很多。我发现最好的方法是序列化Settingsclass并使用XML(下面的代码)。但请先尝试此页: http://cf-bill.blogspot.com/2007/10/visual-studio-sharing-one-file-between.html

public class Settings
{
    public static string ConfigFile{get{return "Config.XML";}}
    public string Property1 { get; set; }

    /// <summary>
    /// Saves the settings to the Xml-file
    /// </summary>
    public void Save()
    {
        XmlSerializer serializer = new XmlSerializer(typeof(Settings));
        using (TextWriter reader = new StreamWriter(ConfigFile))
        {
            serializer.Serialize(reader, this);
        }
    }
    /// <summary>
    /// Reloads the settings from the Xml-file
    /// </summary>
    /// <returns>Settings loaded from file</returns>
    public static Settings Load()
    {
        XmlSerializer serializer = new XmlSerializer(typeof(Settings));
        using (TextReader reader = new StreamReader(ConfigFile))
        {
            return serializer.Deserialize(reader) as Settings;
        }
    }
}