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How to use ? : if statements with Razor and inline code blocks
...u need to display the value of a property (including a string) rather than calling ToString() - Which didn't work in my case. You can do this @(condition ? $"{foo.bar}" : "Default")
– Dan Harris
Feb 6 '18 at 16:18
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How do I negate a condition in PowerShell?
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Perl has a more logical, in the Vulcan sense, idiom, called Unless, which is written as a function. Being half Vulcan, I prefer it, and have implemented it in both C#, as a function, and in C and C++, as a macro.
– David A. Gray
May 30 '18...
Html helper for
... (Note that FileExtensionsAttribute is available in MvcFutures. It will validate file extensions client side and server side.)
public class ViewModel
{
[Required, Microsoft.Web.Mvc.FileExtensions(Extensions = "csv",
ErrorMessage = "Specify a CSV file. (Comma-separated values)")]
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Foreign key from one app into another in Django
...example, if the Manufacturer model above is defined in another application called production, you'd need to use:
class Car(models.Model):
manufacturer = models.ForeignKey('production.Manufacturer')
Have you tried putting it into quotes?
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What is the purpose of the vshost.exe file?
...ment).
The purpose of it is mostly to make debugging launch quicker - basically there's already a process with the framework running, just ready to load your application as soon as you want it to.
See this MSDN article and this blog post for more information.
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Scala equivalent of Java java.lang.Class Object
...like the erasure of the static type of the expression on which getClass is called
It would let me do something like the following where I want to introspect on a class but shouldn't need a class instance.
I also want to limit the types of classes I want to introspect on, so I use Class[_ <: Foo]....
How do you test a public/private DSA keypair?
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In my case, a central work server has a few dozen id_rsa.pub.blahhost files and I didn't know which one matched the lone id_rsa private key & I'm setting up passwordless scp so I can migrate off old websites. Making a new key pair is not an option; I've got my keys set u...
In Clojure, when should I use a vector over a list, and the other way around?
..."Generating Code" = "Inside a Macro" (because most of the code is function calls, thus lists) ; "generating back to front" = "building a sequence by prepending".
– omiel
Apr 4 '14 at 5:14
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How to append data to div using JavaScript?
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Try this:
var div = document.getElementById('divID');
div.innerHTML += 'Extra stuff';
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What does iterator->second mean?
...ough two members: first and second. So if you have a std::pair<X, Y> called p, p.first is an X object and p.second is a Y object.
So now you know that dereferencing a std::map iterator gives you a std::pair, you can then access its elements with first and second. For example, (*it).first will...