How to use LINQ with dynamic collections

Question

Is there a way to convert dynamic object to IEnumerable Type to filter collection with property.

dynamic data = JsonConvert.Deseri         


        

Answer 1

If you are able to, the ideal solution is to specify the type when deserializing, so to avoid having to cast later. This is a lot cleaner than the approaches suggested above.

So if you have -

dynamic data = JsonConvert.DeserializeObject(response.Content);

Then simply change this to -

var data = JsonConvert.DeserializeObject<IEnumerable<dynamic>>(response.Content);

Answer 2

Try casting to IEnumerable<dynamic>

((IEnumerable<dynamic>)data).Where(d => d.Id == 1);

This approach is 4x faster than other approachs.

good luck

Answer 3

So long as data is an IEnumerable of some kind, you can use:

var a = ((IEnumerable) data).Cast<dynamic>()
                            .Where(p => p.verified);

The Cast<dynamic>() is to end up with an IEnumerable<dynamic> so that the type of the parameter to the lambda expression is also dynamic.