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  1. 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?

  2. 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 …

  3. What is the difference between using and await using? And how can I ...

    Oct 29, 2019 · 46 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 …

  4. What is the logic behind the "using" keyword in C++?

    Dec 27, 2013 · 182 In C++11, the using keyword when used for type alias is identical to typedef. 7.1.3.2 A typedef-name can also be introduced by an alias-declaration. The identifier following the using …

  5. What's the problem with "using namespace std;"? - Stack Overflow

    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 …

  6. 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

  7. What is the C# Using block and why should I use it? [duplicate]

    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 to dispose of the object.

  8. What's the scope of the "using" declaration in C++?

    Oct 22, 2008 · But if you put the using declaration inside a namespace it's limited to the scope of that namespace, so is generally OK (with the usual caveats on your particular needs and style).

  9. 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.

  10. How do I use the C#6 "Using static" feature? - Stack Overflow

    Aug 6, 2015 · I'm having a look at a couple of the new features in C# 6, specifically, "using static". using static is a new kind of using clause that lets you import static members of types directly into sco...