hey thanx...!!! I found a graph plot library from www.codeproject.com
http://www.codeproject.com/KB/miscct...hPlotting.aspx
then i started my own project. i add the graphlib library to my project.. then I add the object PlotterDisplayEx into my project. but i cant add those start, pause, stop buttons and scroll bars to adjust speed and position. please can u help me in this case???