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 public List<Email> GetEmailAccountDetailByIDWithSorting(
                                            long EmailFolderID,
                                            string subject, 
                                            string date, 
                                            string sortColumn, 
                                            string sortOrder,
                                            int pageSize,
                                            int pageIndex,
                                            out int totalRecords)
     {

var Emails = db.Emails
               .Where(E => E.Subject.Contains(subject) &&   
                           Convert.ToDateTime(E.Date).ToShortDateString() == date && 
                           E.EmailFolderId == EmailFolderID)
               .OrderBy(u => u.Subject)
               .ThenBy(u => u.Subject);


        switch (sortColumn)
        {
            case "Subject":
                Emails = (sortOrder == "desc") ? Emails.OrderByDescending(u => u.Subject) : Emails.OrderBy(u => u.Subject);
                break;
            case "Date":
                Emails = (sortOrder == "desc") ? Emails.OrderByDescending(u => u.Date) : Emails.OrderBy(u => u.Date);
                break;
            default:
                break;
        }
        totalRecords = Emails.Count();
        return Emails.Skip((pageIndex - 1) * pageSize).Take(pageSize).ToList();
    }

私のlinqクエリ文字列の入力日付は「2013-07-15」で、E.Dateデータベースの日付を入力日付形式に変換する方法です。このクエリデータベースの日付では、「2013-07-15 11:35:48.000」のようになります

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