c# - ASP.NET MVC 3 C#我如何获取可以发布所有不包含profile_id的详细信息的数据

Question

我可以添加一个语句，我可以在其中获得申请人上下文不包含 profile_id 或 profile_id 为 NULL 的语句，以便我可以获取所有数据。

这是我的代码：

var applicantList = (from a in context.Profiles
                                 join app in context.APPLICANTs
                                 on a.PROFILE_ID equals app.Profile_id
                                 select new
                         {
                             a.PROFILE_ID,
                             app.APPLICANT_ID,
                             app.APPLICANT_LastName,
                             app.APPLICANT_FirstName,
                             app.APPLICANT_MiddleName,
                             a.Applicant_LASTNAME,
                             a.Applicant_FIRSTNAME,
                             a.Applicant_MIDDLENAME,
                             a.Applicant_ADDRESS,
                             a.Applicant_CITY,
                             a.Applicant_PHONE,
                             a.Applicant_EMAIL
                         }).AsEnumerable();

        applicantdata = (from s in applicantList
                         orderby s.APPLICANT_ID
                         select new APPLICANT()
    {
        Profile_id = s.PROFILE_ID,
        APPLICANT_ID = s.APPLICANT_ID,
        APPLICANT_LastName = s.Applicant_LASTNAME,
        APPLICANT_FirstName = s.Applicant_FIRSTNAME,
        APPLICANT_MiddleName = s.Applicant_MIDDLENAME,
        APPLICANT_Address = s.Applicant_ADDRESS,
        APPLICANT_City = s.Applicant_CITY,
        APPLICANT_Phone = s.Applicant_PHONE,
        APPLICANT_Email = s.Applicant_EMAIL
    }).AsEnumerable();