ComponentOne Xamarin.iOS Documentation
Controls / FlexChart / Features / Selection
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    You can choose what element of the FlexChart should be selected when the user taps on any region in a FlexChart by setting the SelectionMode property. This property accepts value from the ChartSelectionModeType enumeration.

    The images below show how the FlexChart appears after these properties have been set.

    When SelectionMode is set to Point When SelectionMode is set to Series



    In Code

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    chart.SelectionMode = SelectionMode.SelectionModeSeries;
    chart.SelectedBorderColor = UIColor.Black;
    chart.SelectedBorderWidth = 2;