Add a "Trackball" feature in the chart for ASP.NET MVC UI (aka Kendo UI DataViz with MVC Wrappers) as described in the blogpost: http://blogs.telerik.com/iosteam/posts/14-03-04/trackball-and-annotations-for-chart-for-ios.-check.-demo-app-on-the-appstore.-check-
This feature (called crosshair) is already supported by our chart widget, as you can see from the following demos: http://demos.telerik.com/kendo-ui/dataviz/line-charts/remote-data.html http://demos.telerik.com/kendo-ui/dataviz/scatter-charts/index.html
Would want the tool tip to include the values for all series objects in the case where there are multiple series objects.