Boxing : Converting a value type to reference type is called Boxing.
Does calling ToString() on a String qualify as Boxing ??? No, I don't
think so at all. Try disassembling your assembly and checking the IL
generated. I'm almost positive that the IL generated for your
particular code snippet will not include a box-unbox pair of
instructions.
AFAIK, calling ToString() on a string object (admittedly a silly
thing
to do...all too common with amateurs) will only return the reference
of the string instance.
On Oct 3, 1:15 am, altja <[EMAIL PROTECTED]> wrote:
> So when you call a virtual method like ToString which inherits from
> System.Object you are taking the boxing hit. So if I have some code
> that I know evaluates to a String and I don't use the ToString do I
> avoid the overhead or am I occuring the time anyway?
>
> I assume I avoid the time hit. Therefore, by inuring some risk into
> my application am I increasing my speed.
>
> See my example.
> String errors = mMainDataSource.SelectSingleNode("my:myFields/
> my:validationErrors", NamespaceManager).Value; no boxing
>
> String errors = mMainDataSource.SelectSingleNode("my:myFields/
> my:validationErrors", NamespaceManager).Value.ToString(); boxing
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