func init
	// add using module
	sys.add_use('System.IO')

	// initialize properties
	if(linked("onError"))
		this.setfield('ex', 'ex' + this.id)
	end
end

func doCopyTo(data)
	linked("onError") ? blk.println('try {').inc() : ''
		blk.println(d("Source"), '.CopyTo(', d("Destination"), isdef('BufferSize') ? '' : ', ' + this.props('BufferSize').value, ');')
		event("onComplete")
	if(linked("onError"))
		blk.dec().println('} catch (Exception ', this.ex, ') {').inc()
			event("onError", this.ex + '.Message')
		blk.dec().println('}')
	end
end