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'R'？

简单地做TransactionTypeCode.ToString()会给出一个Enum名称为"Shipment"或"Receipt"的字符串,因此它不会切断芥末.

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
    }    

Answer 2

将此标记为不正确，但我无法删除它。

尝试这个：

string value = (string)TransactionTypeCode.Shipment;