大约有 16,000 项符合查询结果(耗时:0.0324秒) [XML]

https://stackoverflow.com/ques... 

Entity Framework is Too Slow. What are my options? [closed]

...y not use both? EF handles stored procedures and raw SQL just fine. I just converted a LINQ-to-SQL query that took 10+ seconds into a SP that takes ~1 second, but I'm not gonna throw all LINQ-to-SQL out. It saved a LOT of time in other simpler cases, with less code and less room for error and the qu...
https://stackoverflow.com/ques... 

Best Practice: Access form elements by HTML id or name attribute?

... normal JS object, and elements.foo or elements["foo"] is actually getting converted to elements.namedItem("foo"). i.e. you're calling a DOM-defined function, not referencing a JS property! – Doin Jul 21 '19 at 16:36 ...
https://stackoverflow.com/ques... 

How do I avoid capturing self in blocks when implementing an API?

I have a working app and I'm working on converting it to ARC in Xcode 4.2. One of the pre-check warnings involves capturing self strongly in a block leading to a retain cycle. I've made a simple code sample to illustrate the issue. I believe I understand what this means but I'm not sure the "corre...
https://stackoverflow.com/ques... 

Install Gem from Github Branch?

... the transmits data without encryption warning that I'm looking to avoid. Converting to a git: identifier with https might not be enough, as I also have a branch to specify. – Pysis Dec 7 '17 at 15:07 ...
https://stackoverflow.com/ques... 

How to get RelativeLayout working with merge and include?

I have been trying for a few days now to make my layouts more efficient by converting from using several levels of nested LinearLayouts to one RelativeLayout and have come across a few problems that I haven not been able to find a workaround for... ...
https://stackoverflow.com/ques... 

iOS 7 TextKit - How to insert images inline with text?

... @bilobatum's code converted to Swift for those in need: let attributedString = NSMutableAttributedString(string: "like after") let textAttachment = NSTextAttachment() textAttachment.image = UIImage(named: "whatever.png") let attrStringWith...
https://stackoverflow.com/ques... 

How to implement a many-to-many relationship in PostgreSQL?

... product ( product_id serial PRIMARY KEY -- implicit primary key constraint , product text NOT NULL , price numeric NOT NULL DEFAULT 0 ); CREATE TABLE bill ( bill_id serial PRIMARY KEY , bill text NOT NULL , billdate date NOT NULL DEFAULT CURRENT_DATE ); CREATE TABLE bill_product...
https://stackoverflow.com/ques... 

Cannot change column used in a foreign key constraint

...food DROP FOREIGN KEY fk_fav_food_person_id, MODIFY person_id SMALLINT UNSIGNED; Now you can change you person_id ALTER TABLE person MODIFY person_id SMALLINT UNSIGNED AUTO_INCREMENT; recreate foreign key ALTER TABLE favorite_food ADD CONSTRAINT fk_fav_food_person_id FOREIGN KEY (...
https://stackoverflow.com/ques... 

When is JavaScript's eval() not evil?

... (for spreadsheet-like functionality). Having parsed the formula I could convert it into JavaScript and run eval() on it to yield the result. ...
https://stackoverflow.com/ques... 

Throwing the fattest people off of an overloaded airplane.

...d a MinHeap class. (Yes, my example is in C#. I think you get the idea.) int targetTotal = 3000; int totalWeight = 0; // this creates an empty heap! var myHeap = new MinHeap<Passenger>(/* need comparer here to order by weight */); foreach (var pass in passengers) { if (totalWeight < t...