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ExecuteReader requires an open and available Connection. The connection's current state is Connectin

...ould be smart to encapsulate ADO.NET functionality into a DB-Class(me too 10 years ago). Mostly they decide to use static/shared objects since it seems to be faster than to create a new object for any action. That is neither a good idea in terms of peformance nor in terms of fail-safety. Don't poa...
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HTML.ActionLink vs Url.Action in ASP.NET Razor

... answered Oct 10 '11 at 5:56 Darin DimitrovDarin Dimitrov 930k250250 gold badges31503150 silver badges28432843 bronze badges ...
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IList vs IEnumerable for Collections on Entities

... answered Dec 18 '08 at 2:27 Matt HamiltonMatt Hamilton 183k5959 gold badges376376 silver badges317317 bronze badges ...
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C# properties: how to use custom set property without private field?

... 102 Once you want to do anything custom in either the getter or the setter you cannot use auto prop...
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Rails bundle install production only

... answered Jun 6 '12 at 10:46 Simon PerepelitsaSimon Perepelitsa 18.8k88 gold badges5252 silver badges7272 bronze badges ...
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How to make a great R reproducible example

...sed for making factors. A few examples : random values : x <- rnorm(10) for normal distribution, x <- runif(10) for uniform distribution, ... a permutation of some values : x <- sample(1:10) for vector 1:10 in random order. a random factor : x <- sample(letters[1:4], 20, replace = TRU...
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Which “href” value should I use for JavaScript links, “#” or “javascript:void(0)”?

... +50 I use javascript:void(0). Three reasons. Encouraging the use of # amongst a team of developers inevitably leads to some using the ret...
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How does View Controller Containment work in iOS 5?

In WWDC 2011 Session 102, Apple introduced View Controller Containment, which is the ability to create custom view controller containers, analogous to UITabBarController , UINavigationController , and the like. ...
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How to find and return a duplicate value in array

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Host 'xxx.xx.xxx.xxx' is not allowed to connect to this MySQL server

... 850 Possibly a security precaution. You could try adding a new administrator account: mysql> CRE...