What are the uses of "using" in C#? - Stack Overflow
Sep 16, 2008 · The using statement calls the Dispose method on the object in the correct way, and (when you use it as shown earlier) it also causes the object itself to go out of scope as …
What is the logic behind the "using" keyword in C++?
Dec 26, 2013 · 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 …
c# - try/catch + using, right syntax - Stack Overflow
Similarly, if within using body something may happen, which is not directly related to the variable in using, then I wrap it with another try for that particular exception. I rarely use Exception in …
How do you catch exceptions with "using" in C# - Stack Overflow
using (SqlConnection conn = new SqlConnection(...)) { // do your db work here // whatever happens the connection will be safely disposed } If you want to catch the exception for some …
What is the difference between using and await using? And how …
Oct 29, 2019 · Now let's switch from using to await using. Here is the output of the second experiment: Duration: 1,005 msec The implicit call to DisposeAsync returned a ValueTask that …
Does "using" statement always dispose the object?
From using Statement (C# Reference) by MSDN. Defines a scope, outside of which an object or objects will be disposed. The using statement allows the programmer to specify when objects …
How does `USING` keyword work in PostgreSQL? - Stack Overflow
Jan 29, 2024 · It takes a comma-separated list of the shared column names and forms a join condition that includes an equality comparison for each one. For example, joining T1 and T2 …
What's the scope of the "using" declaration in C++?
Oct 21, 2008 · Writing using ImplementationDetail::Foo in your own header, when that header declares ImplementationDetail::Foo can be OK, moreso if the using declaration happens in …
MySQL JOIN ON vs USING? - Stack Overflow
The USING clause works for Oracle, PostgreSQL, MySQL, and MariaDB. SQL Server doesn't support the USING clause, so you need to use the ON clause instead. The USING clause can …
.net - use of "using" keyword in c# - Stack Overflow
Nov 20, 2009 · using has two meanings in C#: using for IDisposable means that when the block of using ends Dispose method will be called. using for namespace means that the types from the …