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Perf difference between importing a namespace and wrting the fully qualified name in code?

BH
Is there a performance difference between importing (keyword "using") a
namespace for an entire class file and using the classes from that namespace
with the fully qualified name? Particularly when only one class from the
namespace is needed once? For example:

Option 1:
.....
using System.Text;
......
StringBuilder sb = new StringBuilder() ;

Option 2:
.......
System.Text.Str ingBuilder sb = new System.Text.Str ingBuilder();
Thanks
Bob
Nov 15 '05 #1
1 2023
On Sun, 27 Jul 2003 10:40:42 -0500, "BH" <bo*******@yaho o.com> wrote:
Is there a performance difference between importing (keyword "using") a
namespace for an entire class file and using the classes from that namespace
with the fully qualified name? Particularly when only one class from the
namespace is needed once? For example:

Option 1:
....
using System.Text;
.....
StringBuilde r sb = new StringBuilder() ;

Option 2:
......
System.Text.St ringBuilder sb = new System.Text.Str ingBuilder();
Thanks
Bob


They are the exact same. The C# compiler compiles both to

instance void [mscorlib]System.Text.Str ingBuilder::.ct or()

in the Intermediate Language.

Austin Ehlers
Nov 15 '05 #2

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