Eliminare campi nulli nella serializzazione Json

Classe Helper per gestire nella serializzazione di un oggetto in formato json l'eliminazione di eventuali campi nulli

   1:  public static class JsonHelper
   2:      {
   3:          public static bool IsEmptyOrNull(this string str)
   4:          {
   5:              if (str == null || str == string.Empty)
   6:              {
   7:                  return true;
   8:              }
   9:              return false;
  10:          }
  11:   
  12:          public static string RemoveJsonNulls(this string str)
  13:          {
  14:              if (!str.IsEmptyOrNull())
  15:              {
  16:                  Regex regex = new Regex(UtilityRegExp.JsonNullRegEx);
  17:                  string data = regex.Replace(str, string.Empty);
  18:                  regex = new Regex(UtilityRegExp.JsonNullArrayRegEx);
  19:                  return regex.Replace(data, "[]");
  20:              }
  21:              return null;
  22:          }
  23:   
  24:          public static string SerializeToJson(this object arg, bool checknull = false)
  25:          {
  26:              JavaScriptSerializer sr = new JavaScriptSerializer();
  27:              if (checknull)
  28:              {
  29:                  return sr.Serialize(arg).RemoveJsonNulls();
  30:              }
  31:              return sr.Serialize(arg);
  32:          }
  33:   
  34:      }
  35:   
  36:     
  37:      public class UtilityRegExp
  38:      {
  39:          public static string JsonNullRegEx = "[\"][a-zA-Z0-9_]*[\"]:null[ ]*[,]?";
  40:          public static string JsonNullArrayRegEx = "\\[( *null *,? *)*]";
  41:      }

posted @ venerdì 23 marzo 2012 13:02

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# re: Eliminare campi nulli nella serializzazione Json

Left by iren at 27/06/2012 11:45
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# re: Eliminare campi nulli nella serializzazione Json

Left by http://www.fcherstal.be at 27/08/2015 14:13
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Classe Helper per gestire nella serializzazione di un oggetto in formato json l'eliminazione di eventuali campi nulli

# gamatire

Left by gamatire at 01/02/2017 10:49
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