How to get a property out of a JsonElement

Question

I get from my data something like that:

ValueKind = Array : "[{"LookupId":370,"LookupValue":"Rahim, Zillur","Email":"[email protected]"}]"

VS says it is a JsonElement but I don't understand how to use JsonElement.TryGetProperty Method

 if (JsonElement.TryGetProperty("Email", out value))
{
    string email = value.GetString();
}

gives errors.

Anyone can help me with syntax to get from variable X that shows value

ValueKind = Array : "[{"LookupId":370,"LookupValue":"Rahim, Zillur","Email":"[email protected]"}]"

how to get just the email property?

Answer 1

Based on the provided info your json element seems to be an array so you need to process it as one. For example:

var js = """
        [{"LookupId":370,"LookupValue":"Rahim, Zillur","Email":"[email protected]"}]
        """;
using var jsonDocument = JsonDocument.Parse(js);
var jsonElement = jsonDocument.RootElement;

var emails = jsonElement.EnumerateArray()
    .Select(element =>
    {
        if (element.TryGetProperty("Email", out var value))
        {
            return (Ok: true, value);
        }

        return (Ok: false, value);
    })
    .Where(t => t.Ok)
    .Select(t => t.value);