JSON与DataTable互转

JSON与DataTable互转直接互转处理

public static string DataTableToJson(DataTable dt)

        {

            StringBuilder Json = new StringBuilder();

            Json.Append("[");

            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++)

                    {

                        //Json.Append("\"" + dt.Columns[j].ColumnName.ToString() + "\":\"" + dt.Rows[i][j].ToString() + "\"");

                        Json.Append("\"" + dt.Columns[j].ColumnName.ToString() + "\":" + dt.Rows[i][j].ToString());



                        if (j < dt.Columns.Count - 1)

                        {

                            Json.Append(",");

                        }

                    }

                    Json.Append("}");

                    if (i < dt.Rows.Count - 1)

                    {

                        Json.Append(",");

                    }

                }

            }

            Json.Append("]");

            return Json.ToString();

        }

public static DataTable JsonToDataTable(string strJson)

         {

             //取出表名  

              /*

             Regex rg = new Regex(@"(?<={)[^:]+(?=:/[)", RegexOptions.IgnoreCase);

             string strName = rg.Match(strJson).Value;

             DataTable tb = null;

             //去除表名  

            strJson = strJson.Substring(strJson.IndexOf("[") + 1);

             strJson = strJson.Substring(0, strJson.IndexOf("]"));

             */



             DataTable tb = null;

             //获取数据  

            Regex rg = new Regex(@"(?<={)[^}]+(?=})");

             MatchCollection mc = rg.Matches(strJson);

             for (int i = 0; i < mc.Count; i++)

             {

                 string strRow = mc[i].Value;

                 string[] strRows = strRow.Split(',');



                 //创建表  

                if (tb == null)

                 {

                     tb = new DataTable();

                     tb.TableName = "json";

                     foreach (string str in strRows)

                     {

                         DataColumn dc = new DataColumn();

                         string[] strCell = str.Split(':');

                         dc.ColumnName = strCell[0].ToString();

                         tb.Columns.Add(dc);

                     }

                     tb.AcceptChanges();

                 }



                 //增加内容  

                DataRow dr = tb.NewRow();

                 for (int r = 0; r < strRows.Length; r++)

                 {

                     string ls_data;

                     ls_data=strRows[r];



                     ls_data=strRows[r].Split(':')[1].Trim();



                     ls_data=ls_data.Replace("，", ",");

                     ls_data=ls_data.Replace("：", ":");

                     ls_data=ls_data.Replace("//","");



                     dr[r] =ls_data;

                     

                 }

                 tb.Rows.Add(dr);

                 tb.AcceptChanges();

             }



             return tb;

         }

 

测试了下 还比较结实的！