RemoveDrawObject

[Ironman9973]

I coded in a strategy DrawArrowUp:

DrawArrowUp ("ArrowUp" + CurrentBar,0, Low[0] - TickSize * 2, Color.Green);

and then I want to remove the Arrow if a condition is true.

if (condition)
{
RemoveDrawObject("ArrowUp");
}

But it is not working. The arrow stays always on the chart.

Thank you.

[NinjaTrader_PatrickH]

Hello Ironman9973,

Thank you for your post.

You are including an additional item in the tag; CurrentBar. This needs to be included in the RemoveDrawObject() method.

Since you may be removing the drawing object after the bar the DrawArrowUp() was placed, you could not include simply RemoveDrawObject("ArrowUp" + CurrentBar);.

You will either need to use a variable you can track or remove the CurrentBar from the tag.

You could track the variable with Time[0] (as this is a DataSeries that can be accessed by the bars ago index). You would still need to figure how many bars have passed since the DrawArrowUp() was placed and use that as a variable int that you can call when removing the drawing object.

DrawArrowUp ("ArrowUp" + Time[0],0, Low[0] - TickSize * 2, Color.Green);

if (condition)
{
RemoveDrawObject("ArrowUp" + Time[sinceDrawn]);
}

Please let me know if you have any questions.