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?
c# - try/catch + using, right syntax - Stack Overflow
In other word, if you know that the initialization of a variable in using may throw a particular exception, I wrap it with try-catch. Similarly, if within using body something may happen, which is not directly …
What is the difference between 'typedef' and 'using'?
Updating the using keyword was specifically for templates, and (as was pointed out in the accepted answer) when you are working with non-templates using and typedef are mechanically identical, so …
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 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'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 …
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 …
Why use a using statement with a SqlTransaction?
During my Googling I see many people using a using statement with a SqlTransaction. What is the benefit and/or difference of using this type of statement with a SqlTransaction?
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. …