How to access properties with "." in the name in a dynamic object

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How to access properties with "." in the name in a dynamic object

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#1 by (4 votes)

1

I have the following JSON object:

{
    "odata.metadata":"httpXXXXX",
    "odata.count":1443,
    "value":[
    { "codigo" : 1 , "nome" : "ABS"}
    ]
}

and create an object like this:

dynamic categorias = JsonConvert.DeserializeObject(jsonResult);

I can access the property value normally but how do I access the odata.count property?

PS: I'm already using the Newtonsoft library to manipulate json.

Thank you.

c# json

asked by anonymous 09.06.2017 / 15:01

1 answer

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score 4 · Accepted Answer

As a property you will not be able to access it, C # has no mechanism to handle it.

In any case, a dynamic object is nothing more than a set of key-values, so you can access a value by its key, in this way

Remembering this may not be a good idea.

var metadata = categorias["odata.metadata"];

Reading indicated:

Why is using dynamic something to be avoided?

Even though you have no control over the payload that will be returned, you will always have to know which properties you want to access. This is sufficient to create a contract class to deserialize JSON.

Here's how it would look:

class RetornoWebservice
{
    [JsonProperty(PropertyName = "odata.metadata")]
    public string Metadata { get; set; }

    [JsonProperty(PropertyName = "odata.count")]
    public string Count { get; set; }

    [JsonProperty(PropertyName = "value")]
    public IEnumerable<Valor> Valores { get; set; }
}

class Valor
{
    [JsonProperty(PropertyName = "codigo")]
    public int Codigo { get; set; }

    [JsonProperty(PropertyName = "nome")]
    public string Nome { get; set; }
}

And the use would be something like

var categorias = JsonConvert.DeserializeObject<RetornoWebservice>(jsonResult);

var metadata = categorias.Metadata;