/// <summary>Update UI elements</summary>
private void UpdateUI(object sender = null, EventArgs args = null)
{
m_btn_active_trades.Checked = Bit.AllSet(Settings.UI.ShowTrades, Trade.EState.ActivePosition);
m_btn_pending_orders.Checked = Bit.AllSet(Settings.UI.ShowTrades, Trade.EState.PendingOrder);
m_btn_visualising_orders.Checked = Bit.AllSet(Settings.UI.ShowTrades, Trade.EState.Visualising);
m_btn_closed_orders.Checked = Bit.AllSet(Settings.UI.ShowTrades, Trade.EState.Closed);
m_grid.Invalidate();
}