JsonConvert.DeserializeObject not automatically deserialising string to int

Question

I'm trying to de-serialize the {"fileNumber": "1"} JSON into the following object.

CustmObj jFile = JsonConvert.DeserializeObject<CustmObj>(json)objects.

public class CustmObj
{
   [JsonProperty("fileNumber")]
   public uint FileNumber { get; set; }
}

I'm expecting it to automatically convert the int to string, however it keeps throwing the error "Error converting value .. to type 'System.UInt32'. Path ..."

How can I do this?

@AluanHaddad is correct, this is intended functionality of Json.NET. It automatically deserializes string-valued properties like "1" when the declared C# type is numeric. If you don't like that you can add a custom converter for uint like the one for int from JSON Deserialization - String Is Automatically Converted To Int. Does that question also answer yours? — dbc
– dbc, Commented Dec 11, 2023 at 20:07
You could specify a private string and mark that as the deserialization target and then use accessors to convert in your public property. But there are many ways. — Aluan Haddad
– Aluan Haddad, Commented Dec 11, 2023 at 20:08
Oh wait. are you saying that Json.NET will automatically convert "1" to an int but will not do so for a uint? And you are asking how to get the same behavior for uint? ... No, I can't reproduce that, int and uint behave identically. See dotnetfiddle.net/0cKL9F — dbc
– dbc, Commented Dec 11, 2023 at 20:10
Does this answer your question? JSON Deserialization - String Is Automatically Converted To Int — Heretic Monkey
– Heretic Monkey, Commented Dec 11, 2023 at 20:11

Romylussone · Accepted Answer · 2023-12-11 20:06:36Z

0

I'm trying to de-serialize the {"fileNumber": "1"} json into the following object.

Just remove the " of integer : {"fileNumber": 1}

answered Dec 11, 2023 at 20:06

Romylussone

8331 gold badge9 silver badges21 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

user2384330 Over a year ago

Unfortunately I can't, the string is only a part of a larger file which is not generated by myself.

Romylussone Over a year ago

so, follow the link post above : stackoverflow.com/questions/41783225/…

Collectives™ on Stack Overflow

JsonConvert.DeserializeObject not automatically deserialising string to int

1 Answer 1

2 Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

2 Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related