大约有 48,000 项符合查询结果(耗时:0.0565秒) [XML]

https://stackoverflow.com/ques... 

What's the difference(s) between .ToList(), .AsEnumerable(), AsQueryable()?

I know some differences of LINQ to Entities and LINQ to Objects which the first implements IQueryable and the second implements IEnumerable and my question scope is within EF 5. ...
https://stackoverflow.com/ques... 

Why does Python use 'magic methods'?

...a part of Python, and it’s too late to make such fundamental changes now. The functions have to remain to avoid massive code breakage. The other "magical methods" (actually called special method in the Python folklore) make lots of sense, and similar functionality exists in other languages...
https://stackoverflow.com/ques... 

Filtering a list of strings based on contents

... I am a n00b and now I am introduced to lambda. feeling awesome to know it. now I will learn more about it. – a_secenthusiast Jun 16 '15 at 17:15 ...
https://stackoverflow.com/ques... 

Get first day of week in SQL Server

... weeks have passed since Monday, January 1, 1900? Let's call that [n]. Ok, now add [n] weeks to Monday, January 1, 1900. You should not be surprised that this ends up being a Monday. DATEADD has no idea that you want to add weeks but only until you get to a Sunday, it's just adding 7 days, then addi...
https://stackoverflow.com/ques... 

How do I parse an ISO 8601-formatted date?

... only) in ambiguous cases. So ONLY use it if you need to parse input of unknown format and are okay to tolerate occasional misreads. – ivan_pozdeev Apr 23 '15 at 23:34 2 ...
https://stackoverflow.com/ques... 

How to return an empty ActiveRecord relation?

...and it takes an argument, depending on the value of the argument, I might know that there will not be any matches, but I still want to return a relation, not an empty array: ...
https://stackoverflow.com/ques... 

How can I format a nullable DateTime with ToString()?

...alue property, and not on the dt2 object itself. DateTime? dt2 = DateTime.Now; Console.WriteLine(dt2.HasValue ? dt2.Value.ToString("yyyy-MM-dd hh:mm:ss") : "[N/A]"); share | improve this answer ...
https://stackoverflow.com/ques... 

Adding a library/JAR to an Eclipse Android project

... Now for the missing class problem. I'm an Eclipse Java EE developer and have been in the habit for many years of adding third-party libraries via the "User Library" mechanism in Build Path. Of course, there are at least 3 wa...
https://stackoverflow.com/ques... 

Capture Image from Camera and Display in Activity

... @Harsha M V This is a known bug on Samsung Galaxy. Please see this answer stackoverflow.com/questions/7031374/… – Oh Danny Boy Sep 29 '11 at 19:16 ...
https://stackoverflow.com/ques... 

Prevent form submission on Enter key press

... from being handled further. NOTE: It's been pointed out that keyCode is now deprecated. The next best alternative which has also been deprecated. Unfortunately the favored standard key, which is widely supported by modern browsers, has some dodgy behavior in IE and Edge. Anything older than IE11...