C# 我必须将.AsEnumerable（）附加到我的ItemDataSource（var aras=…）。 var items = UnitOfWork.GetAll<Table>().Where(x => tableIds.Cont

我必须将.AsEnumerable（）附加到我的ItemDataSource（var aras=…）。

    var items = UnitOfWork.GetAll<Table>().Where(x => tableIds.Contains(x.Id));

    var tupleList = new List<Tuple<string, string>> {

            foreach (var item in items)
            {
                new Tuple<string, string>(item.A1, item.A2),
                new Tuple<string, string>(item.A1, item.A2)
            {
    };

    public IEnumerable<EmailListModel> Get()
    {
        IIndireKatPrincipal indireKatPrincipal = identityStorage.GetPrincipal();
        var groupId = indireKatPrincipal.GroupId;
        var araIds = UnitOfWork.GetAll<UserGroup>()
                .Where(group => group.Id == groupId)
                .SelectMany(group => group.S_ARA).Select(ara => ara.Id);

        var aras = UnitOfWork.GetAll<S_ARA>().Where(x => araIds.Contains(x.Id)).AsEnumerable();

        List<Tuple<string, string>> tupleList = aras
            .Select(ara => new Tuple<string, string>(ara.IEVName, ara.IEVEmail))
            .ToList();

        var emailListModel = tupleList.Select(entity => new EmailListModel()
        {
            DisplayAddress = entity.Item1,
            EmailAddress = entity.Item2
        }).ToList();

        return emailListModel;
    }

List<Tuple<string, string>> tupleList = items
   .Select(item => new Tuple<string, string>(item.A1, item.A2))
   .ToList();

var tupleList = items.Select(item => (item.A1, item.A2)).ToList();

...

foreach (var item in tupleList)
{
    Console.WriteLine(item.Item1);
    Console.WriteLine(item.Item2);
}

var tupleList = items.Select(item => (A1: item.A1, A2: item.A2)).ToList();

foreach (var item in tupleList)
{
    Console.WriteLine(item.A1);
    Console.WriteLine(item.A2);
}