[Question]Truncate/Open

[Fish*]

if I use(To save char)

FileMode.Truncate

then

FileMode.Open

Will it make any difference?
FileMode.Truncate will replace all right?

[kinshi88]

Truncate opens the file and truncates it till the file size is zero bytes, so yes, it replaces it all.
You only need to use Truncate, as it opens it as well.

[Fish*]

So I should use Truncate instead.
it would be better?

[kinshi88]

Well I'm not sure how you're doing it.

Truncate opens the file and removes the contents.
Open just opens the file.

So you decide =P

[Fish*]

emm, this is how it looks the code:
example:
(For open)

        public static void SaveChar(string Name)
        {
            FileStream FS = new FileStream(@"C:\Conquer\Characters\" + Name + ".chr", FileMode.Open);
            BinaryWriter BW = new BinaryWriter(FS);
            BW.Write("Accname");
            BW.Write("Location");
            BW.Write("Noob");
            BW.Write("Silvers");
            BW.Flush();
            FS.Flush();
            BW.Close();
            FS.Close();
        }

For Truncate
example:

       public static void SaveChar(string Name)
        {
            FileStream FS = new FileStream(@"C:\Conquer\Characters\" + Name + ".chr", FileMode.Truncate);
            BinaryWriter BW = new BinaryWriter(FS);
            BW.Write("Accname");
            BW.Write("Location");
            BW.Write("Noob");
            BW.Write("Silvers");
            BW.Flush();
            FS.Flush();
            BW.Close();
            FS.Close();
        }

would it make any difference.
or it would be same if i use open or truncate?

[CptSky]

With 'Open', you can only edit a few bytes. With 'Truncate', you need to rewrite all the file.

[Fish*]

so if i use this for save, truncate will be best?
dats how i see it.
cuz open only change some things, truncate will change all.
I could be wrong?

[Korvacs]

Depends what your writing, if you use a filestream and you write from the start of the file you overwrite the contents anyway, so really theres no difference between the two methods, you could argue that in this case .Open would be better because you arnt having the cpu truncate the file first, but the performance gain is going to be marginal.

[Fish*]

Okay I will let it be Open ;D

[~Falcon]

You should employ the using operator when working with classes that inherit the IDisposable class.

That way, when the using() block closes, all resources are freed.

[Fish*]

okay thanks