C#按需序列化对象为Json字符串

只贴代码，不解释了。新的代理类型确实很给力！

public static class JsonHelper

{

    public static string ToJsonString<T>(IList<T> list, Func<T, string> fun)

    {

        StringBuilder buffer = new StringBuilder();

        bool isFirst = true;            

        

        foreach (T t in list)

        {

            if (!isFirst)

                buffer.Append(",");



            buffer.Append(fun(t));

            isFirst = false;

        }



        return buffer.ToString();

    }      



    public static string ToJsonString<T>(T t, Func<T, string> fun)

    {

        return fun(t);

    }

}

Josn Helper

实体类

public class Staff

{

    public string StaffNo { get; set; }

    public string FirstName { get; set; }

    public string LastName { get; set; }



    public Staff(string no, string fn, string ln)

    {

        StaffNo = no;

        FirstName = fn;

        LastName = ln;

    }

}

Staff Class

测试代码

class Program

{

    static void Main(string[] args)

    {

        Staff s = new Staff("10000", "11111", "22222");

        IList<Staff> list = new List<Staff> { s,s };          



        JsonHelper.ToJsonString<Staff>(list, o=>string.Format("{{firstname:{0}}}", o.FirstName));

        JsonHelper.ToJsonString<Staff>(s, o=>string.Format("{{firstname:{0}, lastname:{1}}}", o.FirstName, o.LastName)); 

        

        Console.ReadLine();

    }

}

Test code

 

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