Introduction
This post explains how to remove a JSON key in JSON result in MVC or C#
We can create our own converter class:
  1. public class JsonKeysConverter : JsonConverter
  2. {
  3. public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
  4. {
  5. Module o = (Module)value;
  6. JObject newObject = new JObject(new JProperty(o.Name, o.Permission));
  7. newObject.WriteTo(writer);
  8. }
  10. public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
  11. {
  12. throw new NotImplementedException("The type will skip the converter.");
  13. }
  15. public override bool CanRead
  16. {
  17. get { return false; }
  18. }
  20. public override bool CanConvert(Type objectType)
  21. {
  22. return true;
  23. }
  24. }
  26. [JsonConverter(typeof(JsonKeysConverter))]
  27. public class Module
  28. {
  29. public string Name { get; set; }
  30. public string[] Permission { get; set; }
  31. }
  33. public class Role
  34. {
  35. public class Roles
  36. {
  37. public Dictionary<string, List<string>> Modules {get; set;}
  38. }
  39. }
  41. public static string json()
  42. {
  43. var oRoles = new Roles();
  44. oRoles.modules = new Module[] {
  45. new Module(){
  46. Name="Page-Profile",
  47. Permission=new string[]{ "Edit","View","Delete"}
  48. },
  49. new Module(){
  50. Name="User",
  51. Permission=new string[]{ "Edit","View","Delete","Update"}
  52. }
  53. };
  54. var json = Newtonsoft.Json.JsonConvert.SerializeObject(oRoles);
  57. Dictionary<string, List<string>> modules = new Dictionary<string, List<string>>();
  58. modules.Add("Page-Profile", new List<string>() { "Edit", "View", "Delete"});
  59. modules.Add("User", new List<string>() { "Edit", "View", "Delete", "Update"});
  61. return JsonConvert.SerializeObject(modules);
Output
  • {"Page-Profile":["Edit","View","Delete"],"User":["Edit","View","Delete","Update"]}