Hello everyone!

I'm trying to add a tips to my line chart. I use Razor View and I don't understand how I can make it.

This is my code:
...

.Series(sr => sr.Add(Html.X().LineSeries()
                     .Axis(Position.Left)
                     .ShowMarkers(false)
                     .Highlight(false)
                     .Tips(tp => tp.Add(Html.X().ChartTip(new ChartTip(){ TrackMouse=true, Width=100, Height=25}
                     )))
                     .Fill(false)
                     .Style(new SpriteAttributes() { StrokeWidth = 1, Width = 1, Stroke = "blue", StrokeOpacity = 1 })
                     .XField(new string[] { "day_id" })
                     .YField(new string[] { "day_value" })
                        ))

...
My code is wrong, I know it. Please help me to fix it and to add a tip correctly.
Thanks.