want to remove white spaces in column

Question

I want to remove white spaces in column using C# form. 
e.g 
a
b

c

d

i want to display a,b,c,d as
a
b
c
d
any help ?? thnx ...

Answer 1

yes i mean the point is dragged with a mouse. thanks for the fast reply.

Answer 2

Check out ZedGraph.  Not sure what you mean by interactively moved.  Do you mean the point is dragged with a mouse?

-Mike