CODEWITHSUNDEEP
c#json.net
Ammar Khan
Ammar Khan

Reputation: 2585

Newtonsoft - Mapping json into .NET Classes

I have a json feed that can be seen here.

I properly mapped the enitre json into classes by defining each structure. Just stuck at one place. If you see the json and search for the property headliners which is an array, it has a property image which is an object. So I created a classes to map

 public class HeadeLiners
    {
      public Image Image { get; set; }
    }

 public class Image
    {
      public ImageSize Jumbo{ get; set; }
    }

public class ImageSize 
    {
      public string Path{ get; set; }
      public int Width{ get; set; }
      public int Height{ get; set; }
    }

But what happen if in response headliners property there is no image found it returns an array which breaks the mapping. and it make sense. I am not sure how to handle this, any please suggest

Upvotes: 3

Views: 221

Answers (1)

Dave Van den Eynde
Dave Van den Eynde

Reputation: 17405

Indeed, that is one weird use of JSON.

Here's what you can do:

var settings = new JsonSerializerSettings();

settings.Error += (obj, errorArgs) =>
{
    if ("image".Equals(errorArgs.ErrorContext.Member))
    {
        errorArgs.ErrorContext.Handled = true;                    
    }
};

var test = JsonConvert.DeserializeObject<Test>(json, settings);

By handling the Error event, you can selectively ignore these kinds of errors. If you ignore this error at this particular location (checking just the member name might just do it) your Image property remains null, which is probably what you want here.

Upvotes: 1

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