Using C1DataEngine is the most recommended way to add data into FlexPivot controls and fetch it for analysis. All you need to do is create an empty Windows Forms Application, add the FlexPivotPage control to the form, and connect it to the C1DataEngine. Add a few lines of code and that's it. You are ready to add a million records to your application.
To know how the C1DataEngine can be used independent of the FlexPivot controls for data visualization and analysis, see Using C1DataEngine topic.