在ASP.NET mvc 3中比较日期和日期时间？

Question

我是ASP.NET新手。我在会议表中有date_meeting（日期时间）列。我想从表中加载数据，这是date_meeting的日期是今天。 我尝试的任何变化：

List<Meeting> meetings = db.Meetings.Where(x => x.date_meeting == Convert.ToDateTime(DateTime.Now.ToString("dd.mm.yyyy")).Date && x.langId == lang).ToList(); 

错误：

LINQ to Entities does not recognize the method 'System.DateTime ToDateTime(System.String)' method, and this method cannot be translated into a store expression.

我需要这种逻辑。

List<Meeting> meetings = db.Meetings.Where(x => x.date_meeting.ToString("dd.mm.yyyy") == DateTime.Now.ToString("dd.mm.yyyy") && x.langId == lang).ToList(); 

Answer 1

，或者您可以使用

List<Meeting> meetings = db.Meetings.Where(m.date_meeting.Day.Equals(DateTime.Now.Day) && 
            m.date_meeting.Month.Equals(DateTime.Now.Month) && 
            m.date_meeting.Year.Equals(DateTime.Now.Year) && && x.langId == lang).ToList(); 

或者尝试这篇文章：LINQ query to compare only date part of DateTime

Answer 2

尝试

List<Meeting> meetings = db.Meetings.Where(x => x.date_meeting.Date == DateTime.Now.Date && x.langId == lang).ToList();