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Help with C# generics error - “The type 'T' must be a non-nullable value type”
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You need to add a T : struct constraint:
public static Nullable<T> CoalesceMax<T>
(Nullable<T> a, Nullable<T> b) where T : struct, IComparable
Otherwise C# will try to work out what Nullable<T> means, and realise that it doesn't already have the constra...
Using two CSS classes on one element [duplicate]
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If you want two classes on one element, do it this way:
<div class="social first"></div>
Reference it in css like so:
.social.first {}
Example:
https://jsfiddle.net/tybro0103/covbtpaq/
sha...
Easiest way to convert int to string in C++
...ts of the C atoi and itoa but expressed in term of std::string.
#include <string>
std::string s = std::to_string(42);
is therefore the shortest way I can think of. You can even omit naming the type, using the auto keyword:
auto s = std::to_string(42);
Note: see [string.conversions] (21...
Push Notifications in Android Platform
... @Dexter, not all Android devices have Google Play installed by default. Most do have it installed by default, especially devices that are purchased from reputable phone vendors, but devices which just have the Android OS flashed to them may not always have Google Play. (For example, a lot of ...
android.widget.Switch - on/off event listener?
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Use the following snippet to add a Switch to your layout via XML:
<Switch
android:id="@+id/on_off_switch"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textOff="OFF"
android:textOn="ON"/>
Then in your Activity's onCreate met...
Match all elements having class name starting with a specific string [duplicate]
...wer to the question, however I would suggest in most cases to simply set multiple classes to each element:
<div class="myclass one"></div>
<div class="myclass two></div>
<div class="myclass three"></div>
In this way you can set rules for all myclass elements an...
Difference Between Select and SelectMany
...tring Number { get; set; }
}
public class Person
{
public IEnumerable<PhoneNumber> PhoneNumbers { get; set; }
public string Name { get; set; }
}
IEnumerable<Person> people = new List<Person>();
// Select gets a list of lists of phone numbers
IEnumerable<IEnumerable<...
z-index not working with fixed positioning
I have a div with default positioning (i.e. position:static ) and a div with a fixed position.
8 Answers
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how can you easily check if access is denied for a file in .NET?
...vironments, which tend to be fairly static. This makes the problem difficult to track down later and makes it easy for this kind of bug to make it into production.
What this means is that you still have to be able to handle the exception if file permissions or existence are bad, in spite of your c...
How do I specify the platform for MSBuild?
...se mode for x86, you must have something like this in your project file:
<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|x86' ">
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</PropertyGroup>
How to create and edit the configuration in Visual Studio
(source: microsoft.com)
(source: msdn.com)
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