What are the uses of "using" in C#? - Stack Overflow
Mar 8, 2017 · User kokos answered the wonderful Hidden Features of C# question by mentioning the using keyword. Can you elaborate on that? What are the uses of using?
What is the C# Using block and why should I use it? [duplicate]
Feb 26, 2020 · The using statement is used to work with an object in C# that implements the IDisposable interface. The IDisposable interface has one public method called Dispose that is used …
What is the difference between using and await using? And how can I ...
Oct 29, 2019 · 44 Justin Lessard's answer explains the difference between using and await using, so I'll focus on which one to use. There are two cases: either the two methods Dispose / DisposeAsync are …
What's the scope of the "using" declaration in C++?
Oct 22, 2008 · Just in case it's not clear from the other answers here: - Do not put a using declaration (or using directive) at file scope in an include file/header! That will cause headaches for users of the …
What's the problem with "using namespace std;"?
The problem with putting using namespace in the header files of your classes is that it forces anyone who wants to use your classes (by including your header files) to also be 'using' (i.e. seeing …
MySQL JOIN ON vs USING? - Stack Overflow
Feb 19, 2021 · Extremely good point. Of all the advantages using provides, it can't be combined with other predicates: select*from t join t2 using(i) and on 1 wouldnt work.
c# - in a "using" block is a SqlConnection closed on return or ...
The intention of "using" is to give developers a guaranteed way to make sure that resources get disposed. From MSDN: A using statement can be exited either when the end of the using statement …
How does `USING` keyword work in PostgreSQL? - Stack Overflow
Jan 29, 2024 · I am confused with the USING keyword which is used to join two tables in postgres. I first saw it in another SO post Compare two tables in postgres. I checked the manual for postgres 2.6. …
c++ - Using std Namespace - Stack Overflow
There seem to be different views on using 'using' with respect to the std namespace. Some say use ' using namespace std', other say don't but rather prefix std functions that are to be used with '...
Should 'using' directives be inside or outside the namespace in C#?
I have been running StyleCop over some C# code, and it keeps reporting that my using directives should be inside the namespace. Is there a technical reason for putting the using directives inside