c# - 如何获取枚举的基础值

Question

我声明了以下枚举:

 public enum TransactionTypeCode { Shipment = 'S', Receipt = 'R' }

如何从 TransactionTypeCode.Shipment 获取值“S”或从 TransactionTypeCode.Receipt 获取值“R”？

简单地执行 TransactionTypeCode.ToString() 会给出枚举名称“Shipment”或“Receipt”的字符串，因此它不会削减芥末。

Answer 1

您必须检查枚举的基础类型，然后转换为正确的类型:

public enum SuperTasks : int
    {
        Sleep = 5,
        Walk = 7,
        Run = 9
    }

    private void btnTestEnumWithReflection_Click(object sender, EventArgs e)
    {
        SuperTasks task = SuperTasks.Walk;
        Type underlyingType = Enum.GetUnderlyingType(task.GetType());
        object value = Convert.ChangeType(task, underlyingType); // x will be int
    }