private void CancelButton_Click(object sender, EventArgs e)
{
if (MessageBox.Show("Background tasks are running. Are you sure you want to cancel them?", "I don't know about this Shepard...", MessageBoxButtons.YesNo, MessageBoxIcon.Exclamation) == System.Windows.Forms.DialogResult.Yes)
{
CancelButton.Text = "Cancelling...";
CancelButton.Enabled = false;
cts.Cancel();
}
}