如何在C＃的现有列表中添加新列？ [英] How to add new column in existing list in C#?

问题描述

大家好，



我有课。



------- --------- *** ------------------------------

Hi guys,

I have a class.

----------------***------------------------------

public string NameEN { get; set; }
public string CandidateIDs { get; set; }

public List<CandidateInfo> CandidateList
{
    get
    {
        string[] CandidatesID = CandidateIDs.Split(',');
        List<CandidateInfo> candidateList = CandidatesID.Select(c => CandidateController.Instance[Convert.ToInt32(c.Trim())]).Where(item => item != null).ToList(); // Candidate List
        //candidateList.AddRange(NameEN);
        return candidateList.Count > 0 ? candidateList : null;
    }

}

我尝试过： < br $>


我想将候选组名添加到候选列表中。



i已经厌倦了这段代码

What I have tried:

I want to add Candidate Group Name to the Candidate List.

i have tired this code

//candidateList.AddRange(NameEN);//NEW COLUMN

请帮帮我们





谢谢

please help me guys


Thanks

推荐答案

所以你的你只需要将缺少的属性添加到你的班级。

So your you just need to add the missing properties to your class.

引用：

as我在我的列表中提交了candidateInfo，其中包含候选ID，名称，单元格号，年龄等...在同一列表中我想添加GroupName

as i'm filing candidateInfo in my list, which contains, candidate id, name, cell no, age...etc.. in the same list i want to add GroupName

您的课程应该类似于以下内容，不确定您发布的代码段是什么。

Your class should look something like the follow, not sure what that code snippet you posted is from.

public class CandidateInfo
{
   public int CandidateId {get;set;}
   public string Name {get;set;}
   public string CellNo {get;set;}
   public int Age {get;set;}
   //Add more properties here as you need them. Ex:
   public string GroupName {Get;set;}
}

然后你就可以访问/赋值了到使用CandidateInfo类时稍后添加的任何属性。例如：

Then you'll be able to access/assign values to any properties you add later on while using the CandidateInfo class. Ex:

var candidates = new List<CandidateInfo>();
var c1 = new CandidateInfo();
c1.Name = "Matt";
c1.GroupName = "Group 1";

var c2 = new CandidateInfo();
c1.Name = "Mark"
c1.GroupName = "Group 2";

candidates.Add(c1);
candidates.Add(c2);

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