problems using RemoveDrawObjects method

[md236]

Hi,

I want to delete all chart objects using a button but I can't delete the lines, text ... using the RemoveDrawObjects or RemoveDrawObject methods. My Button is working and prints all chart objects into the output window but nothing is deleted, why?

Thanks
Mario

		private void ButtonClick(object s, EventArgs e) {
			try{
					foreach (IDrawObject draw in ChartControl.ChartObjects)
					{	
						if(draw.DrawType == DrawType.Line 
							||draw.DrawType == DrawType.Ray
							|| draw.DrawType == DrawType.HorizontalLine 
							||draw.DrawType == DrawType.Ellipse 
							|| draw.DrawType == DrawType.Rectangle 
						){
							RemoveDrawObject(draw.Tag);
							Print(draw.Tag);
						}
					}				
			}
			catch(Exception ex){
				Print("error: " +ex.ToString());
			}
			finally{
				ChartControl.Refresh();
			}
		}

[NinjaTrader_AlanP]

Hello md236,

Thank you for your note.

The drawing objects you are attempting to remove, are these strategy/indicator drawn or manually drawn by the user?

I look forward to your reply.

[md236]

the objects are drawn manually, I use a loop to set this objects invisible and back to visible, this works, but not the removing. How can I remove all objects within "ChartControl.ChartObjects"?

Mario

[NinjaTrader_AlanP]

Hello md236,

Manually drawn objects cannot be removed via NinjaScript.

Please let us know if you need further assistance.

[md236]

ChartControl.ChartObjects is an Array with IDrawObjects, right?
Can I set this Array empty? Or, if I go to DrawingTools and click "Remove Drawing Objects" this is done by script, or not?

[NinjaTrader_AlanP]

Hello md236,

ChartControl.ChartObjects is a collection.

Setting above to null would not be supported.

Removing manually drawn objects via a script is not supported.

Please let us know if you need further assistance.