Setting an Object to Global from Indicator

[Unsuitable]

Hello,

Is it possible to set an object to global from an indicator? Specifically, the indicator draws an object and I would like it to be on all charts of the same instrument.

Thanks

[NinjaTrader_ChrisL]

Hi, thanks for posting. You can use the IsGlobal parameter to make the drawing tool global when creating the draw object e.g.:

Draw.HorizontalLine(NinjaScriptBase owner, string tag, double y, bool isGlobal, string templateName)

It can only be set to global at this time, not after the object is created.

Kind regards,
-ChrisL

[Unsuitable]

Hello ChrisL,

That would do it. It appears that previously another overload method was used. Probably due to getting the X value via time and not bars ago. This was one of the first indicators made... pretty sure I've converted time to bars ago in future indicators. Thus, I can use the method mentioned above.

Thanks

[Unsuitable]

Hello ChrisL,

After trying to implement the change, it is not working. It gives this error:

Unhandled exception: Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index

This was the code that causes it. Keep in mind I changed all the values to hard values and same result. Tried specifying a template name and leaving it blank so it goes to default, no luck.

text = Draw.Text(this, "testing", "gap", 101, 1980, false, "");

text is a dynamic variable. Tried using Draw.Text directly and the same thing. Any clue what's going on?

Thanks

[Unsuitable]

For some reason, the most I can do is ~5 bars ago. When that is set, it goes past the beginning of the chart. For now, it's set to be created at 0 bars ago and the time anchor is set after the object is created.

The problem now is refreshing the indicator erases the global object. Beforehand I'd set the DrawnBy property to null and create a new attachedTo property. This would prevent the object from getting erased as it is now attached to the chart. Again this is unsupported. The better way would be to set the proper object owner from the beginning, but I haven't gotten any help on it as it's unsupported.

text.DrawnBy = null;
text.IsLocked = false;

NinjaTrader.NinjaScript.DrawingTools.DrawingToolAttachedTo newAttachedTo = new NinjaTrader.NinjaScript.DrawingTools.DrawingToolAttachedTo();
newAttachedTo.ChartObject = ChartBars;
newAttachedTo.Instrument = this.Instrument;
text.AttachedTo = newAttachedTo;

- text.IsLocked can be changed with no issues
- text.DrawnBy causes major issues for global objects

A DrawnBy property of null indicates it was drawn by the user. This hack works fine for text objects localized to a single instrument. When done to a global object, the indicator freaks out. After hitting refresh, the object duplicates, and the indicator crashes. The indicator only pops back up when deleting the global objects.

Chris, do you have any insight on how to make global objects persist upon refreshing the chart?

Thank you

[NinjaTrader_ChrisL]

Hi, thanks for posting. If you are putting unsupported code (accessing time slots that do not yet exist on the chart) then the refresh breaking globals would be unsupported. If you are seeing the globals not re-appear after refreshing and the timestamps are already on the chart, please post an example script that reproduces the issue.