Data without using .ToList is also send to api, but how?

Question

In web api the data without using .ToList() is also send to api, but how? This is my LINQ query and I do not use the .ToList() but my data is also sent to the browser.can anyone please tell me the difference or can describe that how it is working?

using (var _context = new iCMEFModelCon())
                {
                    return _context.UserResidents.Where(c => c.ResidentId == residentId)
                        .Select(c => new
                        {
                            UserId = c.User.Id,
                            UserName = ((c.User.FirstName ?? "") + " " + (c.User.LastName ?? "")).Trim()
                        });
                }

score 1 · Accepted Answer · answered Aug 23 '17 at 10:08

The return type of the query is either IEnumerable or IQueryable:

The result of a Linq database query is typically IQueryable< T> which is derived from IEnumerable< T>, IQueryable, and IEnumerable.

If your data source is an IEnumerable, the result type isIEnumerable< T>

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Data without using .ToList is also send to api, but how?

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