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Is it compulsory to add annotations in the constructor itself?

I tried this way, but it doesn’t show the annotations, also the line series is not coming out properly after I added the annotations. May be it’s because of Axes Id , but I am not sure. Just to give you the context, I am adding the annotations in a for loop which is within a timer function. Would be great if you could help me with this.

From the testing that I have done till now, one thing I got to know is that if I add the annotations in the constructor of my view model , it works fine, but if I add the annotations in my timer function (in a loop) it won’t work.

Thanks for the help. I think the problem is that I want to add a collection of annotations every time I update the line series in a timer (dynamically) and I guess that is not possible with annotations in scichart.

I had one small query… In the tutorial 07b – Adding Annotations with MVVM , how is the ObservableCollection(IAnnotationViewModel) Annotations bound to xaml code, cause I am getting a blank scichart surface on adding the annotations through this – Annotations=”{s:AnnotationsBinding Annotations}”?