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wpfxamloxyplot

Chart Plot Points - Show tool tip in OxyPlot

I am working on a WPF app that requires charting. I am using OxyPlot. My chart is rendering properly using the following XAML. 

<oxy:Plot Height="800" HorizontalContentAlignment="Stretch">
  <oxy:Plot.Series>
    <oxy:LineSeries ItemsSource="{Binding Series1Points}" MarkerType="Diamond" Title="Series 1" />
    <oxy:LineSeries ItemsSource="{Binding Series2Points}" MarkerType="Diamond" Title="Series 2" />
  </oxy:Plot.Series>
</oxy:Plot>

I have one challenge that I have been unsuccessful in figuring out. When a series renders, each data point is shown as a diamond. When a user puts their mouse on the diamond, I would like to show a tooltip with the X and Y values of the data point. How can you do that? It seems like it should be possible. Yet, I'm not having any success.

Solution

  • The tooltip is showed just left clicking. To show it when hover you need to modify oxyplot controller:

    c#:

    public PlotController customController { get; private set; }

...

//Sets the controller to enable show tracker on mouse hover
customController = new PlotController();
customController.UnbindMouseDown(OxyMouseButton.Left);
customController.BindMouseEnter(PlotCommands.HoverSnapTrack);

    xaml:

    <oxy:Plot Controller="{Binding customController}" Height="800" ... >