Can you elaborate on that? How should i decide which one to use? As far as i can tell, using() is just more convenient syntax, whereas on allows a little more flexibility … Is there a technical reason for putting the using directives inside · user kokos answered the wonderful hidden features of c# question by mentioning the using keyword. 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. · just in case its not clear from the other answers here: Either way, when the using block is exited (either by successful completion or by error) it is closed. · in c++11, the using keyword when used for type alias is identical to typedef. I have been running stylecop over some c# code, and it keeps reporting that my using directives should be inside the namespace. That will cause … Although i think it would be better to organize like this because its a lot easier to see … 7. 1. 3. 2 a typedef-name can also be introduced by an alias-declaration. 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 … The identifier following … What are the uses of using? · in a mysql join, what is the difference between on and using()? · using var disposable = new disposable(); // do something what is the difference between using and await using? - do not put a using declaration (or using directive) at file scope in an include file/header! So you usually use using for classes that require cleaning up after them, like io. Using calls dispose() after the using -block is left, even if the code throws an exception.
