How to remove a child from System.Object object?

Question

At a Rest-API I got an incoming object from Type System.Object.

public async Task<IActionResult> UploadFileRegistration([FromBody]object incomingObject)

This object I would like to parse into my type.

public class MyType
{
  public string name;
  public double age;
}

The incoming object can has one more attribute "version" and the content of version can look different each time.

{"name":"Gisela", "age":29.64}
{"name":"Gisela", "age":29.64, "version":"new"}
{"name":"Gisela", "age":29.64, "version":2.0}
{"name":"Gisela", "age":29.64, "version":["param1":17,"param2":"oho"]}
{"name":"Gisela", "age":29.64, "version":true}

In case this object has a child with name "version". I want to remove this child and put it into a string. In the parent object the child should be removed.

How to do this?

I think of some thing what do's that (made-up code)..

private object o;
private string myVersion; //...
if(o.HasChild("version"))
{
  myVersion = o.Child("version");
  o.DeleteChild("version");
}

There's no `HasChild` method on `object`, so your code won't even compile. What is the actual type of `o` ? — Sean, Aug 30 '19 at 12:34
@FelipeOriani I have a type, when the child "version" is removed. I dont'n know the content of "version", so I cant create a type for it. — Frank Mehlhop, Aug 30 '19 at 12:46
I add some more content at the initial question to explain better. — Frank Mehlhop, Aug 30 '19 at 13:06
The "incomming object" is not an object, it looks like a plain string. Convert it to objects you can manipulate in code with a JSON parser, Newtonsoft.Json is a popular choice. [Look here](https://stackoverflow.com/questions/6309725/newtonsoft-ignore-attributes). — Hans Passant, Aug 30 '19 at 13:19
I expand MyType with [JsonIgnore] public string version as @HansPassant recomented. Bevor and after I parse the object to string and the diff is my version. — Frank Mehlhop, Aug 30 '19 at 14:12

score 1 · Answer 1 · answered Oct 04 '19 at 17:13

Instead of a system.object, I would try using a Newtonsoft.Json.Linq.JObject

I'm not sure if you need to declare your parameter as dynamic or if JObject will work correctly.

Here is an article that describes it. (It is likely out-dated, but somewhere to start.)

Using JSON.NET for dynamic JSON parsing

How to remove a child from System.Object object?

1 Answers1