有关 C# 枚举的几个例子

/// <summary>
/// 银行简码
/// </summary>
[DataContract]
public enum BankCode
{
   [EnumMember]
   [Description("中行")]
   boc = 95559,

   [EnumMember]
   [Description("工行")]
   icbc = 95588,

   [EnumMember]
   [Description("交行")]
   comm = 95566
}

/// <summary>
/// 将枚举转换为DataTable
/// </summary>
/// <param name="source"></param>
/// <returns></returns>
public static DataTable ConvertEnumToDataTable(Type source)
{
   DataTable dt = new DataTable();
   dt.Columns.Add("name");
   dt.Columns.Add("value");
   dt.Columns.Add("Desc");
foreach (string name in Enum.GetNames(source))
{
   object enumValue = Enum.Parse(source, name);
   DataRow dr = dt.Rows.Add();
   dr[0] = name;
   dr[1] = (int)enumValue;
   dr[2] = GetEnumDesc(source, name);
}
return dt;
}

/// <summary>
/// 读取枚举的Description
/// </summary>
/// <param name="source">枚举Type</param>
/// <param name="enumName">需要读取</param>
/// <returns></returns>
public static string GetEnumDesc(Type source,string enumName)
{
  FieldInfo[] fieldinfo = source.GetFields();
  foreach (FieldInfo item in fieldinfo)
  {
     if (item.Name != enumName) continue;
     Object[] obj = item.GetCustomAttributes(typeof (DescriptionAttribute), false);
     if (obj.Length == 0) continue;
     DescriptionAttribute desc = (DescriptionAttribute) obj[0];
     return desc.Description;
}
    return enumName;
}

public void GetBankValue(BankCode bankCode)
{
int result = 0;
switch (bankCode)
{
case BankCode.boc:
{
result = (int)BankCode.boc;
break;
}
case BankCode.comm:
{
result = (int)BankCode.comm;
break;
}
case BankCode.icbc:
{
result = (int)BankCode.icbc;
break;
}
}
return result;
}

public static int GetBankValue(string bankCode)
{
foreach (var item in Enum.GetNames(typeof(BankCode)))
{
if (item == bankCode)
{
return (int) Enum.Parse(typeof (BankCode), item);
}
}
return 0;
}