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I expected this code to throw an Exception because I am trying to deserialize a string value into a boolean property. However, I was surprised to find that Json.NET happily converts the string value to a boolean. Why? Is there any way to change this behavior, for example a "strict" mode?

using Newtonsoft.Json;

var activeAccount = JsonConvert.DeserializeObject<Account>("{\"active\": \"True\"}");
var inactiveAccount = JsonConvert.DeserializeObject<Account>("{\"active\": \"false\"}");

Console.WriteLine(activeAccount.Active); // True
Console.WriteLine(inactiveAccount.Active); // False

public class Account
{
    public bool Active { get; set; }
}
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  • Why? Because James Newton-King, the author of Json.NET, wanted to support string values for Booleans. As such this isn't really answerable here. Commented Mar 14 at 19:37
  • 1
    Is there any way to change this behavior, for example a "strict" mode? -- not via settings, see Support "strict mode" for RFC7159 parsing #646. Do you need a workaround? Commented Mar 14 at 19:39
  • No, at this point I just want to know if there is some setting I have overlooked. If Json.NET does not support this behavior then that answers my question. Commented Mar 14 at 19:51
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