When to resolve by "using" declaration and when to explicitly state the namespace

Question

I am using System.Configuration.ConfigurationManager only once in my entire code, and I'm wondering if it is better practice to name it explicitly rather than use a 'using' declaration.

string LogoUrl = System.Configuration.ConfigurationManager.AppSettings["LogoURL"];

and

using System.Configuration;;
string LogoUrl = ConfigurationManager.AppSettings["LogoURL"];

Does having the 'using' declaration involve more overhead than explicitly stating the namespace e.g. does it pull in more than I need?

Sargis Koshkaryan · Accepted Answer · 2014-03-14 10:25:31Z

3

No, it doesn't.

The compiler converts all calls to a class to use the fully qualified name You can see it in the produced IL, using any decompiler.

answered Mar 14, 2014 at 10:25

Sargis Koshkaryan

1,0403 gold badges9 silver badges19 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

VictorySaber Over a year ago

Ah so it is just a convenience for us developers. Thanks.

Collectives™ on Stack Overflow

When to resolve by "using" declaration and when to explicitly state the namespace

1 Answer 1

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related