c# - 如何重构这个 switch 语句？

Question

string liquidClass = string.Empty;

switch (cmbLiquidClass.Text)
{
    case "LiquidClass1":
        liquidClass = Settings.Default.LiquidClass1;
        break;
    case "LiquidClass2":
        liquidClass = Settings.Default.LiquidClass2;
        break;
    case "LiquidClass3":
        liquidClass = Settings.Default.LiquidClass3;
        break;
    case "LiquidClass4":
        liquidClass = Settings.Default.LiquidClass4;
        break;
    case "LiquidClass5":
        liquidClass = Settings.Default.LiquidClass5;
        break;
    case "LiquidClass6":
        liquidClass = Settings.Default.LiquidClass6;
        break;
    case "LiquidClass7":
        liquidClass = Settings.Default.LiquidClass7;
        break;
    case "LiquidClass8":
        liquidClass = Settings.Default.LiquidClass8;
        break;
    case "LiquidClass9":
        liquidClass = Settings.Default.LiquidClass9;
        break;
}

试图将当前类的内容放入局部变量中。由于字符串的工作方式(表现得像值类型)，我不能使用字典。有没有什么方法可以重构它，这样它就不需要这么多行来找到所选的液体类别？

Answer 1

您可以使用作为 Settings.Default 一部分的索引器(使用 .Net 4.0 测试):

var liquidClass = Settings.Default[cmbLiquidClass.Text].ToString();