e.Graphics.DrawLine(penYellow, xpoint, ypoint); when i do this i get errorError 2 Argument '2': cannot convert from 'System.Collections.ArrayList' to 'System.Drawing.PointF' andError 1 The best overloaded method match for 'System.Drawing.Graphics.DrawLine(System.Drawing.Pen, System.Drawing.PointF, System.Drawing.PointF)' has some invalid arguments .How i have to do this correction. please help me.Thanks in Advance.Ajnavi