Json.NET error handling fails when serializing to specific object

Question

I'm trying to use JsonSerializerSettings for custom error handling, but when I specify the object type the error stops in runtime debugging. The "json" is no valid JSON, due to remote error that is out of my hands to change/fix.

Working:

var responseData = JsonConvert.DeserializeObject(json,new JsonSerializerSettings
{
    MissingMemberHandling = MissingMemberHandling.Ignore,
    Error = (sender, args) =>
    {
      // My error handling
    }
});

Breaks With:

Additional information: Error converting value "Received merchantid does not match a registered merchant" to type 'TransmitModels+errorData'. Path ...

TransmitModels.errorData responseData = JsonConvert.DeserializeObject<TransmitModels.errorData>(json,new JsonSerializerSettings
{
    MissingMemberHandling = MissingMemberHandling.Ignore,
    Error = (sender, args) =>
    {
      // My error handling
    }
});

@AmitKumarGhosh As mentioned in the question the response is not valid Json, It´s just a sting e.g. "the server is dying". But I would like to catch the error gracefully. I also tryed wrapping it in a try catch but without luck. — Kasper Jensen
– Kasper Jensen, Commented Jul 31, 2015 at 7:25

fero · Accepted Answer · 2015-08-03 12:44:03Z

3

You need to call

args.ErrorContext.Handled = true;

in your callback to tell Json.NET that you handled the exception. If you don't (maybe because you just want to log the error), the exception is thrown after your callback.

answered Aug 3, 2015 at 12:44

fero

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1 Comment

om471987 Over a year ago

THank you so much.. This was exactly what I was looking for :)

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