Question

我有一个需要填充列表的字典。下面的代码不起作用。我该如何解决？

clientinfo.cs

public Dictionary<int, List<string>> Languages { get; set; }

main.cs

   var ClientsData = new List<MapModel.ClientInfo> { }
   ClientsData.Add(new MapModel.ClientInfo { Id = IDCounterDoctors, Languages = new Dictionary<int, List<string>>()});
   ClientsData[0].Languages.Add(2376, ["english", "french"]); // issue is here

Answer 1

您的列表初始化是错误的。还要确保您的语言属性已初始化

ClientsData[0].Languages = new Dictionary<int,List<string>>();
ClientsData[0].Languages.Add(2376,new List<string>(){ "english", "french"});

Answer 2

你的代码有2个错误：

1.var ClientsData = new List {}，这里应该是（）not {};

2.ClientsData [0] .Languages.Add（2376，[“english”，“french”]）;这里应该是一个新的List对象;

我编辑了你的代码，如下：

//initialize client data(list)
var ClientsData = new List<MapModel.ClientInfo>();
//add one ClientInfo into ClientData
ClientsData.Add(new MapModel.ClientInfo { Id = IDCounterDoctors,
                             Languages = new Dictionary<int, List<string>>()});
//set value to the first clientInfo's Language
ClientsData[0].Languages.Add(2376, new List<string>() { "english", "french" });

如何在字典中填充列表？

2 个答案: