Re: Error on ReadAllBytes

From:
=?Utf-8?B?Vmlub2o=?= <Vinoj@discussions.microsoft.com>
Newsgroups:
microsoft.public.vc.language
Date:
Thu, 5 Feb 2009 08:12:54 -0800
Message-ID:
<C3D0DCD7-CE6B-4305-9565-D10110F38579@microsoft.com>
Sorry, I'm not trying to vague, I was trying not to innundate the thread with
a bunch of code. The other "stuff" is setting the parameters of a form with
the info from the config file, then opening the form, displaying information,
then closing the form. The setup of the program is a form (Form1) with a
config button and the "stuff" button. If I click the config button right
after startup, it works (reads the config file properly). When I click
"stuff", it opens the file (properly) and displays the info needed. When I
exit the form created by "stuff", it goes back to Form1. Then if I click the
config button or "stuff", the read is incorrect. It changes both integers to
0x2 consistently.

Here are my save and open routines:

static void SaveParams(String ^path, int pan, int report)
 {
 
        array<unsigned char>^ dataArray = gcnew array<unsigned
char>(MAX_FILENAME+sizeof(int) + sizeof(int));
        //copy file path
        if(path[path->Length-1] != '\\')
            path += "\\";
        //TilePath = TilePath->Replace("\\", "\\\\");
        Encoding^ charBytes = Encoding::ASCII;
        Buffer::BlockCopy(charBytes->GetBytes(path), 0, dataArray, 0,
path->Length);
        Buffer::BlockCopy(BitConverter::GetBytes(pan), 0, dataArray,
MAX_FILENAME, sizeof(int));
        Buffer::BlockCopy(BitConverter::GetBytes(report), 0, dataArray,
MAX_FILENAME + sizeof(int), sizeof(int));
        try{
            File::WriteAllBytes(".\\wiips.cfg", dataArray);
        }
        catch(Exception ^e){
            e->Message;
        }
    }
 
    static String^ OpenParams(int *pan, int *report)
        {
            String ^path;
            try{
                array<unsigned char>^ dataArray =
File::ReadAllBytes(".\\wiips.cfg");
                Encoding^ charBytes = Encoding::ASCII;
                path = charBytes->GetString(dataArray, 0, MAX_FILENAME);
                //removes null values from string
                int index = path->IndexOf(0);
                if(index > 0)
                     path = path->Remove(index);
 
                *pan = BitConverter::ToInt32(dataArray, MAX_FILENAME);
                *report = BitConverter::ToInt32(dataArray, MAX_FILENAME +
sizeof(int));
            }
            catch(Exception ^e){
                e->Message;
            }
            return path;
        }

I've checked the code and I only call them and access the file when I intend
to. Hope this helps. Thanks for your time.

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