Json转换工具类：DataTable to Json实用示例

using System;
using System.Data;
using System.Text;
using System.Collections.Generic;
using System.Reflection;


public class ToJson
{
    public ToJson()
    {

    }
    public static string DataTableToJson(string jsonName, DataTable dt)
    {
        StringBuilder Json = new StringBuilder();
        Json.Append("{\"" + jsonName + "\":[");
        if (dt.Rows.Count > 0)
        {
            for (int i = 0; i < dt.Rows.Count; i++)
            {
                Json.Append("{");
                for (int j = 0; j < dt.Columns.Count; j++)
                {
                    StringBuilder sb = new StringBuilder();
                    escape(dt.Rows[i][j].ToString(), sb);

                    Json.Append("\"" + dt.Columns[j].ColumnName.ToString() + "\":\"" + sb.ToString() + "\"");
                    if (j < dt.Columns.Count - 1)

                    {
                        Json.Append(",");
                    }
                }
                Json.Append("}");
                if (i < dt.Rows.Count - 1)
                {
                    Json.Append(",");
                }
            }
        }
        Json.Append("]}");
        return Json.ToString();
    }

    /// <summary>
    /// 将string数组转换成json字符串
    /// </summary>
    /// <param name="TagStrings">json对象数组名称</param>
    /// <param name="Strings">json对象数组值</param>
    /// <returns></returns>
    public static string StringArrayToJason(string[] TagStrings, string[] Strings)
    {
        StringBuilder Json = new StringBuilder();
        Json.Append("{\"");
        for (int i = 0; i < Strings.Length; i++)
        {
            Json.Append(TagStrings[i]);
            Json.Append("\":\"");
            Json.Append(Strings[i]);