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I have to process a large byte array that is passed to my function. I need to copy the content from this incoming byte array in smaller "chunks" to an outbound byte array. For every "chunk" of data created in the outbound array, I need to call a web service. Upon return, I need to resume looping through the incoming byte array, continuing to pass a whole or partial chunk of data until the complete incoming array is processed (i.e. sent to the web service in chunks). I am very new to C# and I am struggling with a loop that works. I know how to call the web service to handle a "chunk" but I can't get the looping correct. Here is a sketch of the pathetic mess I currently have: int chunkSize = 10000; byte[] outboundBuffer = new byte[chunkSize]; while (BytesRead > 0) { long i = 0; foreach (byte x in incomingArray) { BytesRead += 1; outboundBuffer[i] = incomingArray[i] i++; } uploadObject.Size = BytesRead; uploadObject.MTOMPayload = outboundBuffer; // call web service here and pass the uploadObject // get next "chunk" until incomingArray is fully processed } I know this is a mess and won't work; could someone sketch a proper loop to get this done? Thanks very much.

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