c#循环遍历从字符串数组中分配值的枚举字段
我正在为网络服务构建一个Soap Body,并且有几十个可选字段。
目前我一直在处理这样的事情:
wsSoapBody.OrderType = aMessage[(int)cardCreate.OrderType].ToString();
wsSoapBody.ActivateFlag = Convert.ToInt32(aMessage[(int)cardCreate.ActivateFlag].ToString()); //P-02925;
if (aMessage[(int)cardCreate.ShipDate].ToString() != ""){
wsSoapBody.ShipmentDate = Convert.ToDateTime(aMessage[(int)cardCreate.ShipDate].ToString()); //P-02925;
}
wsSoapBody.ShipmentMethodCard = aMessage[(int)cardCreate.ShipMethodCard].ToString();
wsSoapBody.ShipmentMethodPin = aMessage[(int)cardCreate.ShipMethodPIN].ToString();
您在这些值赋值中看到的CardCreate
是类cardCreate
的枚举常量,定义如下:
namespace EvryCardManagement
{
class CardCreate
{
#region Variables
private DCSSCardCreateType req;
private DCSSCardCreateResponseType rsp;
private DCSSCardCreate_V3_0Service stub;
public string tokenID { get; set; }
private enum cardCreate
{
MsgType = 0,
MsgVersion = 1,
WSName = 2,
ReplyTo = 3,
SourceSystem = 4,
Timestamp = 5,
UniqueMessageID = 6,
SFDCContext = 7,
InstitutionID = 8,
CardNumber = 9,
Version = 10,
ProductID = 11,
AccountNumber = 12,
CustomerID = 13,
CustomerNumber = 14,
EmbossName1 = 15,
Expiry = 16,
FeeMonth = 17,
ChargeAccountNo = 18,
PINMethod = 19,
CardFlag = 20,
AddressTypeCard = 21,
AddressTypePIN = 22,
OrderType = 23,
ActivateFlag = 24,
ShipDate = 25,
ShipMethodCard = 26,
ShipMethodPIN = 27,
FirstName = 28,
LastName = 29,
CardAddress1 = 30,
CardAddress2 = 31,
CardAddress3 = 32,
CardAddress4 = 33,
CardAddress5 = 34,
CardAddress6 = 35,
CardPostCode = 36,
CardCity = 37,
CardCountry = 38,
PINName = 39,
PINAddress1 = 40,
PINAddress2 = 41,
PINAddress3 = 42,
PINAddress4 = 43,
PINAddress5 = 44,
PINAddress6 = 45,
PINPostCode = 46,
PINCity = 47,
PINCountry = 48,
Validfrom = 49,
Note = 50,
MakeCheckStatus = 51,
EmbossName2 = 52,
PAmount = 53,
PAmountLength = 54,
GKIndicator = 55,
CreditLimit = 56,
CardDesignNo = 57,
ExtPictureID = 58,
BulkID = 59,
AccountNo2 = 60
}
所以,不是像我一直在做的那样逐一完成它们,而是可能通过wsSoapBody
(在Web服务中定义)和每个循环来获取aMessage
的对应值(它是定义的作为一个数组像这样string[] aMessage
)
编辑
我有下面的代码来循环,但我想分配给wsSoapBody
,我卡住了:
foreach (cardCreate cItem in (cardCreate[])Enum.GetValues(typeof(cardCreate)))
{
}
(上述更正被Steve Lillis编辑为由于冲突而被拒绝的编辑)
所以我不知道如何将值分配给每个元素,例如我想设置
wsSoapBody[cItem].value = aMessage[(int)CardCreate[cItem]`
或者我也试过:
wsSoapBody[cItem] = aMessage[(int)cItem].ToString();
但由于缺乏知识而无法使其工作(甚至编译)
编辑#2 :
我也看到GetNames
可能我想要的名字和尝试:
foreach (string name in Enum.GetNames(typeof(cardCreate)))
{
wsSoapBody[name] = aMessage[(int)name].ToString();
}
但我cannot apply indexing with [] to an expression of type 'DCSSCardCreateType'
谢谢
为什么不把值放在枚举本身上然后枚举?
例如使用System.ComponentModel
Description
属性,我们可以将该信息添加到枚举本身,例如:
public enum cardCreate
{
[Description("General Response")]
MsgType = 0,
[Description("V2.0")]
WSName = 2,
[Description("OmegaMan")]
ReplyTo = 3,
[Description("Windows 10")]
SourceSystem = 4,
}
所以当我们调用一个特殊的方法来枚举枚举,我们可以提取文本并在稍后使用它,例如:
myextensions.GetEnumValues<cardCreate>()
.Select (ceEnum => new
{
Original = ceEnum,
IndexValue = (int)ceEnum,
Text = ceEnum.GetAttributeDescription()
})
在投影(选择)后,动态实体将如下所示:
甜! 现在我们将所有信息放在一个易于使用的实体中,提供所需的所有信息。
什么? 你需要不止一个字符串描述? 然后在enum
上创建一个自定义属性,并根据需要返回所有项目/数据类型。 为此,请参阅我的博客文章C#在对象上使用扩展属性信息。
以上是上例中使用的扩展方法:
public static class myextensions
{
public static IEnumerable<T> GetEnumValues<T>()
{
Type type = typeof( T );
if (!type.IsEnum)
throw new Exception( string.Format("{0} is not an enum.", type.FullName ));
FieldInfo[] fields =
type.GetFields( BindingFlags.Public | BindingFlags.Static );
foreach (var item in fields)
yield return (T)item.GetValue( null );
}
/// <summary>If an attribute on an enumeration exists, this will return that
/// information</summary>
/// <param name="value">The object which has the attribute.</param>
/// <returns>The description string of the attribute or string.empty</returns>
public static string GetAttributeDescription( this object value )
{
string retVal = string.Empty;
try
{
retVal = value.GetType()
.GetField( value.ToString() )
.GetCustomAttributes( typeof( DescriptionAttribute ), false )
.OfType<DescriptionAttribute>()
.First()
.Description;
}
catch (NullReferenceException)
{
//Occurs when we attempt to get description of an enum value that does not exist
}
finally
{
if (string.IsNullOrEmpty( retVal ))
retVal = "Unknown";
}
return retVal;
}
}
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