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Reading settings from app.config or web.config in .NET
...alue = System.Configuration.ConfigurationManager.AppSettings["keyname"];
Now access the Setting class via Properties:
string keyvalue = Properties.Settings.Default.keyname;
See Managing Application Settings for more information.
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Is if(items != null) superfluous before foreach(T item in items)?
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@CodeInChaos: Ah, I see your point now. When the compiler can detect that the "foreach" is iterating over a List<T> or an array then it can optimize the foreach to use value-type enumerators or actually generate a "for" loop. When forced to enumerate ove...
Rails - Validate Presence Of Association?
... ActiveRecord::Base
has_one :profile
end
This way, Profile.create will now fail. I have to use user.create_profile or associate a user before saving a profile.
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Can an html element have multiple ids?
...hed using mixtures of xml:id, DOM3 Core, XML DTDs, and namespace-specific knowledge.
Edit
Just to clarify: Yes, an XHTML element can have multiple ids, e.g.
<p id="foo" xml:id="bar">
but assigning multiple ids to the same id attribute using a space-separated list is not possible.
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How to get Maven project version to the bash command line
...ve fixed a little bit the maven's -q switch (I am using version 3.5.3), so now if you pass it, you won't get all the annoying non-sense logging stuff that prevents maven from being used within automated scripts. So you should be able to use something like this:
mvn help:evaluate -Dexpression=projec...
How to display a Yes/No dialog box on Android?
Yes, I know there's AlertDialog.Builder, but I'm shocked to know how difficult (well, at least not programmer-friendly) to display a dialog in Android.
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How to do the equivalent of pass by reference for primitives in Java
...r the desired effect. Directly helpful for something I'm working on right now! It is nuts that this question was closed.
– DarenW
Oct 18 '11 at 19:08
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How do I get the result of a command in a variable in windows?
... with %, for example: for /f "delims=" %%i in ('date +%F_%H-%M-%S') do set now=%%i
– dma_k
May 4 '16 at 9:17
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How do I align views at the bottom of the screen?
...YI: that wouldn't work inside a ScrollView. This is the issue I am facing now. See stackoverflow.com/questions/3126347/…
– IgorGanapolsky
May 23 '12 at 0:40
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Iterating over dictionaries using 'for' loops
...release notes: "The insertion-order preservation nature of dict objects is now an official part of the Python language spec."
– Gregory Arenius
Jul 18 '18 at 16:30
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