.NET怎么将枚举（Enum）转换为字符串或整数_枚举转换方法详解

enum Color { Red, Green, Blue }

Color color = Color.Red;
string colorName = color.ToString(); // 结果："Red"

using System.ComponentModel;

enum Status
{
    [Description("待处理")]
    Pending,
    [Description("已完成")]
    Completed
}

// 获取描述文本的辅助方法
public static string GetDescription(Enum value)
{
    var field = value.GetType().GetField(value.ToString());
    var attribute = (DescriptionAttribute)Attribute.GetCustomAttribute(
        field, typeof(DescriptionAttribute));
    return attribute?.Description ?? value.ToString();
}

// 使用
Status status = Status.Completed;
string desc = GetDescription(status); // 结果："已完成"

enum Priority { Low = 1, Medium = 2, High = 3 }

Priority priority = Priority.Medium;
int priorityValue = (int)priority; // 结果：2

byte byteValue = (byte)Priority.Low; // 结果：1
long longValue = (long)Priority.High; // 结果：3

string input = "Green";
if (Enum.TryParse(input, out Color parsedColor))
{
    // 成功解析：parsedColor 为 Color.Green
}
else
{
    // 解析失败
}

Enum.TryParse("red", true, out Color c); // 成功匹配

int value = 2;
Priority p = (Priority)Enum.ToObject(typeof(Priority), value);
// 结果：Priority.Medium