如何更正此词典代码 [英] How to correct this dictionary code

问题描述

我正在尝试使用以下代码将相同msgId的颜色添加到字典中

Hi,

I am trying add colors of same msgId into a dictionary using the following code

public  class CanBusColorTracker
   {
       public static Dictionary<string, List<BusesColor>> dctMsgIDColors = new Dictionary<string, List<BusesColor>>();

       public void Track(BusesColor buscolor, string msgId)
       {
           // must avoid duplicate Keys
           if (!dctMsgIDColors.Keys.Contains(msgId))
           {
               dctMsgIDColors.Add(msgId, new List<BusesColor>());
           }

           // we don't really have to avoid putting duplicate
           // Colors, but, why not.
           if (!dctMsgIDColors[msgId].Contains(buscolor))
           {
               dctMsgIDColors[msgId].Add(buscolor);
           }
       }
   }
   public class CANBusColorMsgIdMap
   {
       string msgId;
       public BusesColor BusColor { get; set; }
       public List<CanBusColorTracker> MsgIdListColors { get; set; }

       public string MsgId
       {
           get
           {
               if (!String.IsNullOrEmpty(msgId))
                   return msgId.ToUpper();
               else
                   return string.Empty;
           }

           set { msgId = value; }
       }

       public CANBusColorMsgIdMap(BusesColor buscolor, string msgId)
       {
           this.MsgIdListColors = MsgIdListColors;
           this.BusColor = buscolor;
           this.msgId = msgId;
       }
   }

能否帮我解决这个问题





谢谢

John

Can you please help me in solving this


Thanks
John

推荐答案

1。以下声明什么都不做。删除它。

1. The following statement does nothing. Remove it.

this.MsgIdListColors = MsgIdListColors;

2.公共成员dctMsgIDColors被声明为静态，但您稍后会声明这些列表。如果是静态的，为什么列表？



3.就像Richard M.所说，你需要清楚地定义你想要的东西。我最好的猜测是......

2. The public member dctMsgIDColors is declared static but you later declare a list of these. If static, why the list?

3. Like Richard M. says, you need to clearly define what you want. My best guess is ...

public class CanBusColorTracker : Dictionary<string, List<BusesColor>>  { }

代码中的其他地方...

elsewhere in your code ...

public static CanBusColorTracker Tracker = new CanBusColorTracker();

List<busescolor> colors;
string ID = "123";

// given string ID, lookup colors.
if ( Tracker.TryGetValue(ID, out colors) )
{
// do something with list of colors.
}</busescolor>

C＃中的多地图通用集合类 - 可以存储重复键值对的字典集合类 [ ^ ]



问候，

Praveen nelge

Multi-map Generic Collection Class in C# - A Dictionary Collection Class that can Store Duplicate Key-value Pairs[^]

Regards,
Praveen nelge

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