JavaScriptSerializer. How to ignore property

https://docs.microsoft.com/dotnet/api/system.web.script.serialization.scriptignoreattribute

Use [ScriptIgnore]

using System;
using System.Web.Script.Serialization;

public class Group
{
    // The JavaScriptSerializer ignores this field.
    [ScriptIgnore]
    public string Comment;

    // The JavaScriptSerializer serializes this field.
    public string GroupName;
}

Best possible answer I have is to make your own JavaScriptConverter and parse the property based on your own condition(s).

public override object Deserialize(IDictionary<string, object> dictionary, Type type, JavaScriptSerializer serializer)
{
  //...
  if (!object.ReferenceEquals(dictionary["MyProperty"],null)){
    // My Code
  }
  //...
}

I used internal instead of public properties and it worked for me