foreach statement cannot operate on variables of type &#39;Task&lt;<anonymous type:=""

Question

="" var contacts = (from c in _db.Contacts join dgm in _db.DistributionGroupMembers on c.Id equals dgm.ContactId join dg in _db.DistributionGroups on dgm.DistributionGroupId equals dg.Id join dgis in _db.DistributionGroupInSms on dg.Id equals dgis.DistributionGroupId where dgis.SmsId == SmsId select new { id = c.Id, FirstName = c.FirstName, LastName = c.LastName, PhoneNumber = c.PhoneNumber, Result = "Waiting to be sent" }).Distinct().ToArrayAsync(); foreach (var contact in contacts) //contacts is underlined { recipients.Recipients.Add(new RecipientsInSmsData() { Id = contact.id, FirstName = contact.FirstName, LastName = contact.LastName, PhoneNumber = contact.PhoneNumber, SendingResult = contact.SendingResult }); }

Compiler error message:

foreach statement cannot operate on variables of type 'Task<[]>' because 'Task<[]>' does not contain a public instance definition for 'GetEnumerator'

between the <>'s after task it says:

anonymous type: int id, string FirstName, string LastName, string PhoneNumber, string Result

Answer 1

Asynchronous operations need to be awaited in order to get the result, the documentation is a great starting point for learning how to use async and await.
The other problem here is that the foreach is unnecessary if LINQ is used properly:

var contacts = await (
            from c in _db.Contacts
            join dgm in _db.DistributionGroupMembers on c.Id equals dgm.ContactId
            join dg in _db.DistributionGroups on dgm.DistributionGroupId equals dg.Id
            join dgis in _db.DistributionGroupInSms on dg.Id equals dgis.DistributionGroupId
            where dgis.SmsId == SmsId
            select new RecipientsInSmsData
            {
                Id = c.Id,
                FirstName = c.FirstName,
                LastName = c.LastName,
                PhoneNumber = c.PhoneNumber,
                Result = "Waiting to be sent"
            })
            .Distinct()
            .ToArrayAsync();

recipients.Recipients.AddRange(contacts);