jquery datagrid 后台获取datatable处理成正确的json字符串

1.处理点所有的换行

/// <summary> 

/// 去掉换行符        

/// </summary>       

/// <param name="str"></param>    

/// <returns></returns>

 public string GetDeleteBR(string   strinput){
 string p = "\\n|\r\n"; //数据库的的换行是\n

 string returnstr = System.Text.RegularExpressions.Regex.Replace(strinput, p, " ");

return returnstr;

}

2.转换成对应的json数据格式的字符串

/// <summary>

/// datatable to json

/// </summary>

/// <param name="count"></param>

/// <param name="page"></param> 

/// <param name="dt"></param>

/// <returns></returns>

 public string DataTableToJson(int count, int page, DataTable dt){

  StringBuilder Json = new StringBuilder();  

  Json.Append("{");            

  Json.Append("\"total\":" + count + ",");            

  Json.Append("\"rows\":[");

   if (dt != null){

        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() +

                         "\":\""           + GetDeleteBR (dt.Rows[i][j].ToString())+ "\"");    

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

                            {

                                 Json.Append(",");

                                Json.Append("\r\n");

                             }    

                       }                   

                       Json.Append("}");         

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

                    {

                     Json.Append(","); 

                    }    

                 }       

          }         

    }            

        Json.Append("],");     

        Json.Append("\"index\":" + page);        

       Json.Append("}");

       return Json.ToString();

}

            return Json.ToString();