how to add data to win sample chart control

Hello friends in my project there are few values of x & y in an array & I want to draw a nonlinear best fit curve in c# so any one can help me how to add data to chart. I want whole code for it.How to create data source or how to bind data to chart control.I have downloaded win-sample chart control but not getting how to add data to chart.If u have any other idea plz give me. plz help me..... thanks