Sparkline for WPF
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    Show Tooltip
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    Sparkline lets you add a tooltip to provide some extra information in a pop-up box. The pop-up box appears every time you hover over the Sparkline. It can be used to display useful information about the data points used for plotting the sparkline.

    Tooltip in Sparkline control.

    To add a tooltip to the sparkline, add the following code.

    <c1:C1Sparkline.ToolTip>
    <ToolTip>
        Sparkline Type: Line
    </ToolTip>
</c1:C1Sparkline.ToolTip>

    sparkline.ToolTip = "Sparkline Type: Line";