[Razor] How to add Chart in Panel

[delta]

I use this code to add Chart in Panel:

@(Html.X().Window().Title("Speed Report(Line Chart)").Layout(LayoutType.Fit).Width(1000).Height(500).Hidden(true).ID("ParkReportWindow").Add(
        Html.X().Panel().Add(Html.X().Chart()) 
    )
)

But after i use it, my Page is white and not display anything.

[Vladimir]

- your window is hidden
- chart has no store
- need use Items instead Add