using System.Configuration;

namespace CSFramework.DB
{
    /// <summary>
    /// 当前程序集的App.config配置
    /// </summary>
    public class AppSettings
    {
        public static readonly AppSettings Current =
            new AppSettings(System.Reflection.Assembly.GetExecutingAssembly()
                .Location);

        private Configuration configuration;

        private AppSettings(string assemblyPath)
        {
            configuration =
                ConfigurationManager.OpenExeConfiguration(assemblyPath);
        }

        public string this[string key]
        {
            get
            {
                var keyValue = configuration.AppSettings.Settings[key];
                return keyValue == null ? null : keyValue.Value;
            }
        }
    }
}