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I want to have a BoxAnnotation where Y1 (- double.Infinity) and Y2 (+ double.Infinity). Basically I wanna specify only X1 and X2. And the behaviour must ensure always the box annotations Y1 & Y2 stretch to visible area even when I resize (zoomout) the chart.

In the screen shot its not stretched.

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Best Answer

Hi Jerome,

The property you are looking for is AnnotationBase.CoordinateMode. It’s hard to find but we have several FAQs on CoordinateMode. This one is perhaps the best:

I would advise against setting BoxAnnotation.Y1, Y2 to +/- infinity as this might cause a crash in WPF itself (infinite sized UIElement).

Best regards,

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