如何使用json.net将c＃泛型列表转换为json？

Question

我将数据表转换为C＃通用列表。

 DataTable dt = mydata();
 List<DataRow> list = dt.AsEnumerable().ToList();

现在如何list使用json.net 将其转换为json？任何建议。

json格式的样本应该像这样，

{"Table" : [{"userid" : "1","name" : "xavyTechnologies","designation" : "",
"phone" : "9999999999","email" : "[e-mail]","role" : "Admin","empId" : "",
 "reportingto" : ""},{"userid" : "2","name" : "chendurpandian","designation" :
 "softwaredeveloper","phone" : "9566643707","email" : "[e-mail]",
 "role" : "Super User","empId" : "1","reportingto" : "xavyTechnologies"},
{"userid" : "3","name" : "sabarinathan","designation" : "marketer","phone" :
"66666666666","email" : "[e-mail]","role" : "User",
 "empId" : "2","reportingto" : "chendurpandian"}]}

Answer 1

这是一个例子：

using System;
using System.Data;
using Newtonsoft.Json.Linq;

class Test
{
    static void Main()
    {
        DataTable table = new DataTable();
        table.Columns.Add("userid");
        table.Columns.Add("phone");
        table.Columns.Add("email");

        table.Rows.Add(new[] { "1", "9999999", "[e-mail]" });
        table.Rows.Add(new[] { "2", "1234567", "[e-mail]" });
        table.Rows.Add(new[] { "3", "7654321", "[e-mail]" });

        var query = from row in table.AsEnumerable()
                    select new {
                        userid = (string) row["userid"],
                        phone = (string) row["phone"],
                        email = (string) row["email"]            
                    };

        JObject o = JObject.FromObject(new
        {
            Table = query
        });

        Console.WriteLine(o);
    }
}

文档： 使用Json.NET的LINQ to
JSON