Hello All
I'm still converting onto C# from COBOL and have managed to read a file of bytes into an array using the following;
byte[] allBytes = File.ReadAllBytes(openFileDialog1.FileName);
I'd now like to loop through the array, one byte at a time and check that byte to see if it contains binary zeroes. Any suggestions as to how I could do this If they are zeroes, I'd then like to jump 200 bytes forward and see if this bytes is also zeroes then take some action !
Thanks
Read 1 byte at a time from an array
LearningVisualC2005
You can iterate through an array using foreach:
foreach(byte b in allBytes)
{
if(b == 0)
{
// Do stuff
}
}
If you want to check the first n bytes are zero, then use a for loop:
bool allZero = true;
for(int i = 0; i < n; i++)
{
if(allBytes
{
allZero = false;
break;
}
}
if(allZero)
{
for(int i = 200; i < allBytes.Length; i++)
{
// Do stuff to bytes from 200 on
}
}
bolky
Mark
Many thanks - it's great to see code and how it works, very different to what I'm used to.
Once inside the for loop, how do I actually check an individual byte In COBOL it would be something like allBytes(i) but I'm nit sure how to code this.
Ta
DevanDanger
Hi
Sorry, this stupid forum software replaces probably the most common C# construct in existence with a light-bulb emoticon, even within code tags. I'm sure there's some way of stopping it, I just don't know what it is.
Array indexers in C# are specified with square brackets: I'm adding spaces here to prevent the emoticon:
for(int i = 0; i < allBytes.Length; i++)
{
Console.Write( allBytes[ i ] );
}
WinFormsUser13232
Perfect ! Works a treat. Now very happy with my first app.
Thanks.