Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
373 views
in Technique[技术] by (71.8m points)

c# - get date part only from datetime value using entity framework

I want to get date part only from database 'date time' value I m using the below code..but it is getting date and time part.

using (FEntities context = new FEntities())
{
    DateTime date = DateTime.Now;
    if (context.tblvalue.Any(x => x.date == date))
    {    
    }
}
See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

You can compare just specified parts:

context.tblvalue.Any(x => x.date.Year == data.Year 
                        && x.date.Month == data.Month 
                        && x.date.Day == data.Day);

EDIT: You can also try the following:

context.tblvalue.Any(x => EntityFunctions.TruncateTime(x.date) == data.Date);

Another approach:

context.tblvalue.Any(x =>  SqlFunctions.DatePart("year", x.date)  == data.Year 
                        && SqlFunctions.DatePart("month", x.date) == data.Month 
                        && SqlFunctions.DatePart("day", x.date)   == data.Day);

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

1.4m articles

1.4m replys

5 comments

57.0k users

...