CmsDBUtility/ToJosn.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Collections;
using System.Data;
using System.Web.Script.Serialization;


namespace Cms.DBUtility
{
    public class ToJosn
    {
        #region dataTable转换成Json格式
        /// <summary>      
        /// dataTable转换成Json格式      
        /// </summary>      
        /// <param name="dt"></param>      
        /// <returns></returns>      
        public static string ToJson(ArrayList aliJson)
        {
            StringBuilder sbuBuilder = new StringBuilder();
            sbuBuilder.Append("{\"Value\":[");
            for (int i = 0; i < aliJson.Count; i++)
            {
                sbuBuilder.Append("\"");
                sbuBuilder.Append(aliJson[i].ToString().Replace("\"", "\\\""));
                sbuBuilder.Append("\",");
            }
            if (aliJson.Count > 0)
            {
                sbuBuilder.Remove(sbuBuilder.Length - 1, 1);
            }
            sbuBuilder.Append("]}");
            string strJson = sbuBuilder.ToString();
            strJson = strJson.Replace("\n", "<br />");
            strJson = strJson.Replace("\r", "<br />");
            return strJson;//sbuBuilder.ToString();
        }
        public static string ToJson(DataTable dtaJson)
        {
            StringBuilder sbuBuilder = new StringBuilder();
            sbuBuilder.Append("{\"Rows\":[");
            for (int i = 0; i < dtaJson.Rows.Count; i++)
            {
                sbuBuilder.Append("[");
                for (int j = 0; j < dtaJson.Columns.Count; j++)
                {
                    sbuBuilder.Append("\"");
                    sbuBuilder.Append(dtaJson.Rows[i][j].ToString().Replace("\"", "\\\"").Replace("\r\n", "<br>"));
                    sbuBuilder.Append("\",");
                }
                sbuBuilder.Remove(sbuBuilder.Length - 1, 1);
                sbuBuilder.Append("],");
            }
            if (dtaJson.Rows.Count > 0)
            {
                sbuBuilder.Remove(sbuBuilder.Length - 1, 1);
            }
            sbuBuilder.Append("]}");