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Update relationships when saving changes of EF4 POCO objects

...ategories" is an IEnumerable containing the IDs of the categories the user selected in the view. db.Entry(dataobj).State = EntityState.Modified; db.SaveChanges(); dataobj = db.ServiceTypes.Include(x => x.Categories).Single(x => x.Id == dataobj.Id); var it = _categories != null...
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B-Tree vs Hash Table

...faster than with a tree algorithm (O(1) instead of log(n)), but you cannot select ranges (everything in between x and y). Tree algorithms support this in Log(n) whereas hash indexes can result in a full table scan O(n). Also the constant overhead of hash indexes is usually bigger (which is no factor...
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:active pseudo-class doesn't work in mobile safari

...ed if the page is scrolled. In light of this, I suggest using this only on select elements. In my case, I am developing a web-app for use out in the field which is basically a list of buttons to navigate pages and submit actions. Because the whole page is pretty much buttons in some cases, this won'...
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CSS selector for other than the first child and last child

I am making a very advanced website. My question: Is it possible to select all the other children except for the :first-child and the :last-child ? I know there is a :not() selector but it doesn't work with more than one not in the parentheses. This is what I have: ...
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Is it safe to use Project Lombok? [closed]

...ield name) and finally, use the Breakpoints view to right-click the BP and select Breakpoint Properties... to add a condition. Nice. UPDATE 4 (Aug 16 '13) Netbeans doesn't like it when you update your Lombok dependencies in your Maven pom. The project still compiles, but files get flagged for hav...
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How to write :hover condition for a:before and a:after?

...t comes after the pseudo-class (and in fact, at the very end of the entire selector). Notice also that they are two different things; calling them both "pseudo-selectors" is going to confuse you once you run into syntax problems such as this one. If you're writing CSS3, you can denote a pseudo-eleme...
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Can I add color to bootstrap icons only using CSS?

...) your cursor looks like an oversized capital "I" character, it's used for selecting text. In CSS it's referred to as cursor: text;. It's also known as "I-beam". – Dai Sep 12 '12 at 1:47 ...
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What is the difference between “JPG” / “JPEG” / “PNG” / “BMP” / “GIF” / “TIFF” Image?

...ow demonstrate the noticeable artifacting of lossy compression algorithms; select the thumbnail image to view the full size version. Each format is different as described below: JPEG JPEG (Joint Photographic Experts Group) files are (in most cases) a lossy format; the DOS filename extension is JPG...
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What is scope/named_scope in rails?

...Zombie.rotting.fresh.recent.limit(3) It translates to the below in SQL, select "zombies.*" from "zombies" where "zombies"."rotting" = 't' and (age<20) order by create_at desc limit 3 Example above is based on rails 4 syntax ...
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WebSockets protocol vs HTTP

...a preconceived notion about WebSockets vs HTTP particularly since he never selected an answer nor awarded the bounty. – kanaka Feb 15 '13 at 13:06 9 ...