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Entity Framework Refresh context?
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The best way to refresh entities in your context is to dispose your context and create a new one.
If you really need to refresh some entity and you are using Code First approach with DbContext class, you can use
public stat...
Correct way to pause Python program
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For a long block of text, it is best to use input() (or raw_input() on Python 2.x) to prompt the user, rather than a time delay. Fast readers won't want to wait for a delay, slow readers might want more time on the delay, someone might be interrupted while...
Querying data by joining two tables in two database on different servers
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From a practical enterprise perspective, the best practice is to make a mirrored copy of the database table in your database, and then just have a task/proc update it with delta's every hour.
sh...
C++ IDE for Linux? [closed]
...e coded on Mac, Win and Linux, and although i find visual studio to be the best IDE, codeblocks comes close.
– DavidG
Oct 21 '08 at 17:40
35
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Algorithm to detect corners of paper sheet in photo
What is the best way to detect the corners of an invoice/receipt/sheet-of-paper in a photo? This is to be used for subsequent perspective correction, before OCR.
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When would you use a WeakHashMap or a WeakReference?
... objects. So wow you don't have to manually do hashmap.remove ever because items are automagically removed once the obj is out of scope! Literally magic! Such an ugly magic hack is a complete facepalm.
– Pacerier
Sep 18 '17 at 4:04
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MySQL Cannot Add Foreign Key Constraint
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Best Answer Ever, After trying almost everything, it turned out that I have to explicitly add unique to the reference table column even though it's a Primary Key!!
– Yahya
Nov 14 '17 at ...
Beginner's guide to ElasticSearch [closed]
...tps://www.elastic.co/blog/author/zachary-tong
To be perfectly honest, the best source of beginner knowledge is now Elasticsearch - The Definitive Guide written by myself and Clinton Gormley.
It assumes zero search engine knowledge and explains information retrieval first principals in context of...
jQuery vs document.querySelectorAll
...& elem.parentNode ) {
// Handle the case where IE and Opera return items
// by name instead of ID
if ( elem.id === match[3] ) {
return makeArray( [ elem ], extra );
}
} else {
return makeArray( [], extra );
}
And if all else fails it will return the result of old...
UIView Hide/Show with animation
...Previous Solution
Michail's solution will work, but it's not actually the best approach.
The problem with alpha fading is that sometimes the different overlapping view layers look weird as they fade out. There are some other alternatives using Core Animation. First include the QuartzCore framework...