How to get a list of dynamic object properties in c#

问题

I have JSON object, something like this, and its dynamic, jsonInput=

{
    "CONTRATE":80,
    "SALINC":30,
    "RETAGE":67,
    "MARSTATUS":"single",
    "SPOUSEDOB":"1970-01-01",
    "VIEWOPTION":"pension"
}

I am converting it into .NET dynamic object using Newtonsoft.Json converter:

var jsonDynamic = JsonConvert.DeserializeObject<dynamic>(jsonInput);

Now I have dynamic jsonDynamic .NET object.

How can I get it's properties now? These should be jsonDynamic.CONTRATE, jsonDynamic.SALINC etc...

How can I get the names of these properties from jsonDynamic?

Thanks.

回答1:

You could create a class that would represent the json you want to deserialize, like below:

public class ClassName
{
    public int Contrate { get; set; }
    public int Salinc { get; set; }
    // Here you will place the rest of your properties.
}

and then just use this:

var jsonDynamic = JsonConvert.DeserializeObject<ClassName>(jsonInput);

This way you will avoid making use of a dynamic object.

回答2:

var jobj = JObject.Parse(jsonInput);
dynamic jsonDynamic = jobj;

var dict = jobj.Children()
               .OfType<JProperty>()
               .ToDictionary(x => x.Name, x => x.Value);

int c = (int)dict["CONTRATE"];

or if you want only property names

var propNames = jobj.Children()
                    .OfType<JProperty>()
                    .Select(x => x.Name)
                    .ToList();

回答3:

You should deserialize into a Dictionary and then you can loop through the Keys to get the property names

Dictionary<string, string> values = JsonConvert.DeserializeObject<Dictionary<string, string>>(jsonInput);

You can access the values.Keys to get the property names then.

来源：https://stackoverflow.com/questions/29422322/how-to-get-a-list-of-dynamic-object-properties-in-c-sharp

标签

json

dynamic