CODEWITHSUNDEEP
c#streamreader
WannabeEngineer30
WannabeEngineer30

Reputation: 45

Skipping Bytes During Stream Read

Was curious if it was possible to skip bytes during a stream read of a binary file? I'm trying to read in 32 bytes then skip the next 6 bytes all the way and repeat all the way towards the end of the file. Size of file is around 10mb. Here's the relevant code I have right now where I'm getting an out of bounds error. 

            byte[] tempBuff = new byte[FlashSize];
            int numBytesToRead = FlashSize;
            int bytesRead = 0;

            while(bytesRead <= numBytesToRead - 38{
                    ecmStream.Read(tempBuff, 0, 32);
                    ecmStream.Seek(6, SeekOrigin.Current);

            }

edit:

Thanks to Henk I also realized I need to skip 14 bytes after I read in every 10000. Is parsing on the fly with a stream still a good option at this point?

Upvotes: 0

Views: 1205

Answers (1)

pm100
pm100

Reputation: 50140

your first read is wrong

ecmStream.Read(tempBuff, 32, FlashSize);

should be

ecmStream.Read(tempBuff, 0, FlashSize);

That first int says which offset in tempBuff to read into https://learn.microsoft.com/en-us/dotnet/api/system.io.stream.read?view=netframework-4.7.2

Upvotes: 1

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