OnBarsChanged()
OnBarsChanged()
Definition
An event driven method which is called any time the underlying bar series have changed for the chart where the drawing tool resides. For example if a user has changed the primary instrument or the time frame of the bars used on the chart.
Method Return Value
This method does not return a value.
Syntax
You must override this method using the following syntax:
public override void OnBarsChanged()
Method Parameters
This method does not accept any parameters.

