copy a binary file to another file not exist before

Hi expert,

In MySql database, I have a binary file name carrier.myd. Since I'll delete this content file, and write new content to this file. To do that, I want to back up my carrier.myd to another file name. If in case something is wrong, I can use this new file name to back up the old data.
In C#, how can I make copy of this carrier.myd to a non existed file name?

Thanks,
JT

jtran007Asked:
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vaibhav_dwCommented:
Hi JT

You can do something like as that provided in the code snippet.
I've assumed the path of the files. I've simply read and writen the binary files.

FileStream f = new FileStream("d://carrier.myd", FileMode.Open);
	long length = f.Length;
        FileStream fbackup = new FileStream("d://backup//carrier.myd", FileMode.Create);
        BinaryReader br = new BinaryReader(f); 
        BinaryWriter bwbackup = new BinaryWriter(fbackup);
 
        byte[] buffer = br.ReadBytes(int.Parse(length.ToString()));
        bwbackup.Write(buffer);
 
        f.Close();
        fbackup.Close();
        br.Close();
        bwbackup.Close();

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PablissimoCommented:
Path.GetRandomFilename() will give you a random filename that you could use - the filename it generates will be incredibly unlikely to match any existing file in your directory.
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jtran007Author Commented:
Thks,
JT
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