获取枚举的描述信息

/// <summary>
/// 获取枚举项描述信息 例如GetEnumDesc(Days.Sunday)
/// </summary>
/// <param name="en">枚举项 如Days.Sunday</param>
/// <returns></returns>
public static string GetEnumDesc(Enum en)
{
Type type = en.GetType();
MemberInfo[] memInfo = type.GetMember(en.ToString());
if (memInfo != null && memInfo.Length > 0)
{
object[] attrs = memInfo[0].GetCustomAttributes(typeof(DescriptionAttribute), false);
if (attrs != null && attrs.Length > 0)
{
return ((DescriptionAttribute)attrs[0]).Description;
}
}
return en.ToString();
}

public enum Days
{
[Description("星期天")]
Sunday,
[Description("星期一")]
Monday,
[Description("星期二")]
Tuesday,
[Description("星期三")]
Wednesday,
[Description("星期四")]
Thursday,
[Description("星期五")]
Friday,
[Description("星期六")]
Saturday
}