I'm trying to set up a sparkline, and I've got it working.
However, the tool tip shows the data field name, as well as the value, unlike your demos, where just the number is shown.
.Read(read => read.Action("GetBatchStats", "Home"))
I've attached a screenshot of the tool tip.
Also, what's the best way to set the height. My chart seems very short (the values are small, but I expected it to scale).