As far as i can tell, using() is just more convenient … · in c++11, the using keyword when used for type alias is identical to typedef. Updating the using keyword was specifically for templates, and (as was pointed out in the accepted answer) when you are working with … · in a mysql join, what is the difference between on and using()? Can you elaborate on that? 7. 1. 3. 2 a typedef-name can also be introduced by an … · user kokos answered the wonderful hidden features of c# question by mentioning the using keyword. Using calls dispose() after the using -block is left, even if the code throws an exception. So you usually use using for classes that require …