如何将值os列表对象组合成一个用逗号分隔的字符串

Question

I am having list of skills on my Registration page like:

playing,Dancing,Programming etc .

 public partial class EmployeeMaster
 {
    public int Id { get; set; }
    public string Fullname { get; set; }
    public string Skills { get; set; }
 }

Now on my post method i am receiving Skills like this:

This skill is a list object:listSkill object:

[0]:Name=Playing
   Selected=true

[1]:Name=Dancing
   Selected=true

[2]:Name=Programming
   Selected=false

[HttpPost]
    public ActionResult Index(EmployeeModel m)
    {
        if (ModelState.IsValid)
        {
            var employeeModel = new EmployeeMaster();
            employeeModel.Skills = m.Skills.Select(t => t.Name).SingleOrDefault();  //How to do this as this would take only single value not all skills?

I want to concatinate all this skills in to a single string seperated by comma and store in my database table.

Answer 1

Simply by using string.Join with your desired Skills property ( Name in this case):

employeeModel.Skills = string.Join(", ", m.Skills.Select(t => t.Name));

This will concatenate all your skill names using the ", " separator.

Answer 2

employeeModel.Skills = string.Join(",", m.Skills.Select(t => t.Name).Distinct().ToList()); 

这样的建议对您很有帮助。