Using Linq.Dynamic where method with a dynamic list gives error

Question

I am reading some JSON and converting it to a dynamic list. Below is My Code:

dynamic data = JObject.Parse(response);
var result = data.result;
var result = ((IEnumerable)arr).Cast<dynamic>().ToList();

var id = result[0].id;
var filtereddata = result.Where("id==1");

The line

var filtereddata = result.Where("id==1");

Gives error No property or field 'id' exists in type 'Object while var id = result[0].id; seems to be working.

The JSON I am parsing is :

{
"count": 1,
"result": [
{
  "id": 11,
  "name": "Locations",

}]
}

Please let me know if more information is needed. Thanks for your valuable time.

Edit: Even tried var filtereddata = result.Where(c=>c.id==1).Select("id"); using lambda expression but still the same issue.

Answer 1

Dynamic LINQ does not work with dynamic type. LINQ to Objects would work, but since you are receiving the filter as string , it's not applicable.

The workaround is to use temporary anonymous projection before applying the dynamic Where and then selecting back the original object:

var filtereddata = result
    .Select(x => new { item = x, id = (int)x.id, name = (string)x.name })
    .Where("id==1")
    .Select(x => x.item);