Is it possible to draw text boxes only in the current session?

[Gianpiero]

One of my indicators draws some text on top and on bottom of some bars. It works fine, but I would rather choose to see all text boxes or only those in the current session. Is it possible, somehow?

[NinjaTrader_ChelseaB]

Hello Gianpiero,

This is possible and would require removing any drawing objects that were drawn in previous sessions.

To get the date and time of the first bar of the session you can use either BarsSinceNewTradingDay or a SessionIterator.

https://ninjatrader.com/support/helpGuides/nt8/barssincenewtradingday.htm

https://ninjatrader.com/support/helpGuides/nt8/sessioniterator.htm

The drawing objects should have a predictable tag name such as "MyDrawingObjectTagName" + CurrentBar.

By doing so you can loop through the DrawObjects collectinon and call RemoveDrawObject() with the tag name.

https://ninjatrader.com/support/helpGuides/nt8/drawingtools_drawobjects.htm

https://ninjatrader.com/support/helpGuides/nt8/removedrawobject.htm

foreach (DrawingTool draw in DrawObjects.ToList())
{
for (index = 0; index < CurrentBar - BarsSinceNewTradingDay; index++)
{
if (draw.Tag == "MyDrawingObjectTagName" + index)
{
RemoveDrawObject(draw.Tag);
}
}