Re: Best practice using large objects in foreach

I don't see any object reuse, at most variable reuse. Compiler does not care
much about it. Nor does CLR.
From the performance point of view, A & B are the same. C is slower because
of using().

"Benny" <bennyandlinds@xxxxxxxxx> ha scritto nel messaggio
news:1154011992.988169.191070@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
I just wanted to throw the discussion out there on what the best
practice people feel is for using large objects in a foreach loop. For
example if you are reusing an Image object in a loop like this (letters
above snippets are for reference purposes):

A
foreach ( string s in myList )
{
Image img = Image.FromFile( s );
// operate on img
}

would it run more efficiently like this?

B
Image img = null;
foreach ( string s in myList )
{
img = Image.FromFile( s );
// operate on img
}

or

C
foreach ( string s in myList )
{
using ( Image img = Image.FromFile( s );
{
// operate on img
}
}

the list goes on....

Let me know what your thoughts are.



.

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