How to ignore Self referencing loop detected In MVC View?

Question

How can I prevent the "Self-referencing loop detected" error while serialising the object in MVC View ?

 var fieldDependants = @Html.Raw(Newtonsoft.Json.JsonConvert.SerializeObject(Model);

I added following configuration snip in Global.asax But still getting the same error.

config.Formatters.JsonFormatter
            .SerializerSettings
            .ReferenceLoopHandling = Newtonsoft.Json.ReferenceLoopHandling.Ignore;

Thanks

where in global.asax did you add this default. You can also pass this value to the `serializeobject` call itself. — Steve0, Jun 20 '17 at 18:43
Your second code snippet configures the serializer used by MVC. Your first code snippet does not use that serializer. — , Jun 20 '17 at 19:30
You might have a look at my answer on **[“Self Referencing Loop Detected” exception with JSON.Net](https://stackoverflow.com/questions/40472419/self-referencing-loop-detected-exception-with-json-net/51235783#51235783)** page. — Murat Yıldız, Jul 08 '18 at 20:40

score 1 · Answer 1 · answered Jun 20 '17 at 18:47

Not knowing where you placed the default in Global.asax you can ensure the setting is what you want by setting it explicitly with the SerializeObject call

Newtonsoft.Json.JsonConvert.SerializeObject(model, New Newtonsoft.Json.JsonSerializerSettings With {.ReferenceLoopHandling = Newtonsoft.Json.ReferenceLoopHandling.Ignore})  //VB


Newtonsoft.Json.JsonConvert.SerializeObject(model, New Newtonsoft.Json.JsonSerializerSettings() {ReferenceLoopHandling = Newtonsoft.Json.ReferenceLoopHandling.Ignore})  //CS

score 0 · Answer 2 · answered Jun 20 '17 at 19:30

The JsonFormatter.SerializerSettings are only used by Web API. They will not be picked up by a direct call to SerializeObject from an MVC view. You could try setting the global DefaultSettings delegate on JsonConvert:

JsonConvert.DefaultSettings = () => new JsonSerializerSettings
{
    ReferenceLoopHandling = ReferenceLoopHandling.Ignore
};

If that doesn't work, you will need to pass the settings to SerializeObject directly as shown by @Steve in his answer.

How to ignore Self referencing loop detected In MVC View?

2 Answers2