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.net 枚举(使用备注)

2018年03月12日  | 移动技术网IT编程  | 我要评论

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获取备注的类:

///

 

/// 备注特性
///

public class RemarkAttribute : Attribute
{
private string m_remark;
public RemarkAttribute(string remark)
{
this.m_remark = remark;
}
///
/// 备注
///

public string Remark
{
get { return m_remark; }
set { m_remark = value; }
}
///
/// 获取枚举的备注信息
///

///枚举值
///
public static string GetEnumRemark(Enum val)
{
try
{
Type type = val.GetType();
FieldInfo fd = type.GetField(val.ToString());
if (fd == null)
return string.Empty;
object[] attrs = fd.GetCustomAttributes(typeof(RemarkAttribute), false);
string name = string.Empty;
foreach (RemarkAttribute attr in attrs)
{
name = attr.Remark;
}
return name;
}
catch (Exception ex)
{
Log4NetHelper.Log.Error(GetEnumRemark Erro,ex);
return null;
}
}
}
///
/// 枚举扩展类
///

public static class EnumExtension
{
///
/// 获取枚举的备注信息
///

///
///
public static string GetRemark(this Enum em)
{
try
{
Type type = em.GetType();
FieldInfo fd = type.GetField(em.ToString());
if (fd == null)
return string.Empty;
object[] attrs = fd.GetCustomAttributes(typeof(RemarkAttribute), false);
string name = string.Empty;
foreach (RemarkAttribute attr in attrs)
{
name = attr.Remark;
}
return name;
}
catch (Exception ex)
{
Log4NetHelper.Log.Error(GetRemark Error, ex);
return null;
}

}

枚举类:

public enum CodeEmun
{
///


/// 成功
///

[Remark(成功)]
SUCCESS = 1,
///
/// 失败
///

[Remark(失败)]
FAILED = 0,
///
/// xml格式错误
///

[Remark(xml格式错误)]
XMLFORMATERROR = 2,
///
/// 签名错误
///

[Remark(签名错误)]
SINGERROR = 3,
///
/// 引用了不存在的对象(例如错诨的订单号)
///

[Remark(引用了不存在的对象(例如错诨的订单号))]
ORDERIDERROR = 101,
///
/// 业务状态不正确
///

[Remark(业务状态不正确)]
STATUSERROR = 102,
///
/// 由于业务限制导致业务不能执行
///

[Remark(由于业务限制导致业务不能执行)]
YEWULIMIT = 103,
///
/// 实名认证失败
///

[Remark(实名认证失败)]
IDENTIFICATION = 104
}

 

调用方法:

CodeEmun enumItem = (CodeEmun)Enum.Parse(typeof(InvestmentCommon.CodeEmun), notifyInfo.Code.ToString());
string codeMessage = RemarkAttribute.GetEnumRemark(enumItem);
 

 

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