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  • asp.net DataTable转JSON

    #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(DataTable dt)    
    {    
          StringBuilder jsonBuilder = new StringBuilder();    
          jsonBuilder.Append("{\"");    
             jsonBuilder.Append(dt.TableName.ToString());    
             jsonBuilder.Append("\":[");    
             for (int i = 0; i < dt.Rows.Count; i++)    
            {    
                 jsonBuilder.Append("{");    
                 for (int j = 0; j < dt.Columns.Count; j++)    
                 {    
                        jsonBuilder.Append("\"");    
                        jsonBuilder.Append(dt.Columns[j].ColumnName);    
                        jsonBuilder.Append("\":\"");    
                        jsonBuilder.Append(dt.Rows[i][j].ToString());    
                        jsonBuilder.Append("\",");    
                 }    
                 jsonBuilder.Remove(jsonBuilder.Length - 1, 1);    
                 jsonBuilder.Append("},");    
           }    
           jsonBuilder.Remove(jsonBuilder.Length - 1, 1);    
           jsonBuilder.Append("]");    
           jsonBuilder.Append("}");    
           return jsonBuilder.ToString();    
    }   

    #endregion dataTable转换成Json格式   

    #region DataSet转换成Json格式    
    /// <summary>      
    /// DataSet转换成Json格式      
    /// </summary>      
    /// <param name="ds">DataSet</param>      
    /// <returns></returns>      
    public static string ToJson(DataSet ds)    
    {    
          StringBuilder json = new StringBuilder();    

          foreach (DataTable dt in ds.Tables)    
         {    
              json.Append("{\"");    
              json.Append(dt.TableName);    
              json.Append("\":");    
              json.Append(ToJson(dt));    
              json.Append("}");    
         }    
         return json.ToString();    
    }   
    #endregion   

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  • 原文地址:https://www.cnblogs.com/ybb521/p/2636067.html
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