Hi!
I am using a custom modifier written guided by the example in http://http://www.scichart.com/extending-scichart-with-text-annotations-and-screenshots/
However, I am running mvvm and have an Annotations dependency property in my modifier.
However, when the Annotations property in my viewmodel is changed, the modifier does not redraw itself. I have to do something else, like switch over to another tab and then back again for the new annotations to appear.
Any ideas to how I can get the modifier to draw the new annotations?
- Lisbeth Skogland asked 11 years ago
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Hello Lisbeth,
Is the Annotations DependencyPropertyChanged callback firing? If so then it sounds like your binding is wired up ok, you just need to trigger a redraw. In a Chart Modifier you can do this by calling
base.ParentSurface.InvalidateElement();
This will cause the chart to redraw itself (All series and annotations). Please let me know if this helps!
- Andrew Burnett-Thompson answered 11 years ago
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