C#AppSettings数组

您不需要将密钥数组放入 AppSettings 应用程序设置 应该是这样的:

 <appSettings>
    <add key="CONST1" value="Hi, I'm the first constant." />
    <add key="CONST2" value="I'm the second." />
    <add key="CONST3" value="And I'm the third." />
</appSettings>

在此之后,您可以创建全局静态字典,您可以从程序的所有部分访问该字典:

public static Dictionary<string, List<double>> Dataset
{
       get
       {
            var ret = new Dictionary<string, List<double>>();
            // Iterate through each key of AppSettings
            foreach (string key in ConfigurationManager.AppSettings.AllKeys)
                ret.Add(key, Foo(ConfigurationManager.AppSettings[key]));
            eturn ret;
        }
}

像 Foo method static 属性,则需要将Foo方法定义为静态方法。因此,您的Foo方法应该如下所示:

private static List<double> Foo(string key)
{
    // Process and return value 
    return Enumerable.Empty<double>().ToList(); // returning empty collection for demo
}

dictionary

public void ProcessData1()
{
    List<double> data = Dataset["CONST1"];
    //...
}