JsonProperty c# Serialize Dictionary values into an array

Question

I have the following dictionary:

   [JsonProperty("Simulations")]
    public IDictionary<int, Simulation> Simulations { get; set; }

Actual behavior:

When I'm sending my data to the front I send it as an object:

   "simulations": {
       "02": {
            "rachatBrut": 542,
            "montantPercu": 250,
            },
        "52": {
            "rachatBrut": 400,
            "montantPercu": 385,
            },
    }

Wanted Behavior

I want to send only the values of the dictionary as an array:

   "simulations": [
       {
            "rachatBrut": 542,
            "montantPercu": 250,
       },
       {
            "rachatBrut": 400,
            "montantPercu": 385,
       }
    ]

JsonIgnore the existing property. Create a new readonly property which projects the array you want in the JSON. — mjwills
– mjwills, Commented Feb 27, 2019 at 13:11

aHochstein · Accepted Answer · 2019-02-27 13:23:42Z

1

You could either add another property and use [JsonIgnore] on the one u have right now. To make the new one an array just call .ToArray() on the Dictionary. Or you can write yourself an own CustomJsonConverter for this behavior.

For your specific case this would produce an array like the one u need:

Simulations.Select(k => k.Value).ToArray();

edited Feb 27, 2019 at 13:23

answered Feb 27, 2019 at 13:13

aHochstein

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2 Comments

aHochstein Over a year ago

It produces an array containing KeyValuePair Objects. If u want only the values u need to use a Select before.

Melchia Over a year ago

Thank you. I ended up converting my dictionary into an array of simulations

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