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Why do we need a pure virtual destructor in C++?
...cific method, you can make the destructor pure virtual. I don't see much point in it but it's possible.
Note that since the compiler will generate an implicit destructor for derived classes, if the class's author does not do so, any derived classes will not be abstract. Therefore having the pure v...
Does a const reference class member prolong the life of a temporary?
...ay to explain what happened:
In main() you created a string and passed it into the constructor. This string instance only existed within the constructor. Inside the constructor, you assigned member to point directly to this instance. When when scope left the constructor, the string instance was des...
What's best SQL datatype for storing JSON string?
...is based on nvarchar) will be introduced, as well as a FOR JSON command to convert output from a query into JSON format
Update #2: in the final product, Microsoft did not include a separate JSON datatype - instead, there are a number of JSON-functions (to package up database rows into JSON, or to p...
A type for Date only in C# - why is there no Date type?
...is very careful to ignore the time, and is also very careful not to try to convert to and from UTC or other time zones.
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Request is not available in this context
I'm running IIS 7 Integrated mode and I'm getting
11 Answers
11
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Join vs. sub-query
... Yes, most databases therefore includes it as an optimization step to convert subqueries into joins when it is analyzing your query.
– Cine
May 28 '10 at 9:38
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Create a custom event in Java
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You probably want to look into the observer pattern.
Here's some sample code to get yourself started:
import java.util.*;
// An interface to be implemented by everyone interested in "Hello" events
interface HelloListener {
void someoneSaidHello...
Is it possible to use Razor View Engine outside asp.net
...ing that T4 templates can only be changed at compile time, the .tt file is converted to and saved as a .cs file. In my usage a semi- technical user would like to update the template without having to rebuild the application. Is there an easy way that this can be achieved using T4 templates?
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Stop Visual Studio from mixing line endings in files
...; Check for consistent line endings on load
VS2015 will now prompt you to convert line endings when you open a file where they are inconsistent, so all you need to do is open the files, select the desired option from the prompt and save them again.
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Using msbuild to execute a File System Publish Profile
... Copy element is a bit complex;
it performs a transform of the items and converts their paths to new
paths rooted at the PublishDestination folder (check out Well-Known
Item Metadata to see what those %()s mean).
To call this target from the command-line we can now simply perform
this c...