void InvalidateAllPanels()
{
pnlPrice.Invalidate();
if (isIndicatorsShown)
foreach (Panel pnlind in pnlInd)
pnlind.Invalidate();
if (isFloatingPLShown)
pnlFloatingPLChart.Invalidate();
if (isBalanceEquityShown)
pnlBalanceChart.Invalidate();
return;
}