You could try something like this;
if (MessageBox.Show(String.Format("Adjust transfer volume from {0} cc to {1} cc?", m_objTransfer.TransferVolume, m_dblTempVolFromTo), "Adjust transfer", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes))
{
xtTransferTransferVolume.Text = m_dblTempVolFromTo
}
Hope this helps,
Fredrik