本文实例讲述了C#实现集合转换成json格式数据的方法。分享给大家供大家参考,具体如下:
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/// <summary> /// dataTable转换成Json格式 /// </summary> /// <param name="dt"></param> /// <returns></returns> public static string ToJson(DataTable dt) { if (dt != null && dt.Rows.Count > 0) { StringBuilder jsonBuilder = new StringBuilder(); jsonBuilder.Append( "{\"" ); jsonBuilder.Append( "data" ); 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(jsonStringFromat(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(); } else { return "" ; } } /// <summary> /// Enumerable转成JSON /// </summary> /// <param name="list"></param> /// <returns></returns> public static string EnumerableToJson(IEnumerable list) { StringBuilder json = new StringBuilder(); int i = 0; if (list != null ) { json.Append( "{\"data\":[" ); foreach (var item in list) { json.Append( "{" ); PropertyInfo[] pi = item.GetType().GetProperties(); int j = 0; foreach (var p in pi) { if (j < pi.Length - 1) { json.Append( "\"" + p.Name.ToString() + "\":\"" + jsonStringFromat(p.GetValue(item, null ).ToString()) + "\"," ); } else { json.Append( "\"" + p.Name.ToString() + "\":\"" + jsonStringFromat(p.GetValue(item, null ).ToString()) + "\"" ); } j++; } i++; json.Append( "}," ); } json.Remove(json.Length - 1, 1); json.Append( "]}" ); } if (i != 0) return json.ToString(); else return "" ; } |
希望本文所述对大家C#程序设计有所帮助。