I want to show excel columns in Windows forms chart using C#

Question

I have a code of c# in which I am accessing excel file and i am showing it in a gridview on windows forms application. 

Now I want to show specific columns in a chart of windows form application.

Like Chart Series 1 shows excel column 1's data,

        Chart Series 2 shows excel column 2's data and so on.  

 

 

Help..