I do not think that the sparklines are the best choice here. You cannot get the horizontal lines and cannot get the color-per-item.
I suggest you go with the ChartView
. You can use a RadCartesianChart and collapsed axes. You can use the DefaultVisualStyle property of the series to set a style that gets the fill from the underlying data item. This way you will get color-per-item. You can use the Annotations property of the chart to add a CartesianGridLineAnnotation for the horizontal lines.
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