void makePackagesSentCounterEntry(long packagesSent) { if (label_packagesSent.InvokeRequired) { makePackagesSentCounterCallback d = new makePackagesSentCounterCallback(makePackagesSentCounterEntry); label_packagesSent.Invoke(d, new object[] { packagesSent }); } else { label_packagesSent.Text = Convert.ToString(packagesSent); } }