Dfyjkt

I just want to transform the points when scrolling. I already use the e.Graphics.TranslateTransform() but it only works on drawing. The point of the line wont change the offset.

 private void Form1_Scroll(object sender, ScrollEventArgs e)
 
 Point scrollOffset = this.AutoScrollPosition;

 for (int lk = 0; lk < Pt1.Count; lk++)
 
 Pt1[lk] = new Point(Pt1[lk].X + scrollOffset.X, Pt1[lk].Y + scrollOffset.Y);
 Pt2[lk] = new Point(Pt2[lk].X + scrollOffset.X, Pt2[lk].Y + scrollOffset.Y);
 
 this.Invalidate();
 this.Update();
 this.Refresh();
 
 private void Form1_Paint(object sender, PaintEventArgs e)
 
 Point scrollOffset = this.AutoScrollPosition;
 e.Graphics.TranslateTransform(scrollOffset.X, scrollOffset.Y);
 e.Graphics.Clear(this.BackColor);
 e.Graphics.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High;
 e.Graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
 Pen greenPen = new Pen(Color.Green,1);
 greenPen.DashPattern = new float 5.0F, 5.0F, 5.0F, 5.0F ;
 Pen red = new Pen(Color.Red,1);
 red.DashPattern = new float 5.0F, 5.0F, 5.0F, 5.0F ;
 Pen Grey = new Pen(Color.Gray,1);
 Grey.DashPattern = new float 5.0F, 5.0F, 5.0F, 5.0F ;
 #region "Draw Line using cursor"
 Pen SolidGreen = new Pen(Color.Green, 1);
 Pen SolidGrey = new Pen(Color.Gray, 1);
 Pen Red = new Pen(Color.Red, 1);

 for (int pl = 0; pl < Pt1j.Count; pl++)
 

 PointF pointsj = new PointF 
 
 new PointF(Pt2j[pl].X, Pt2j[pl].Y),
 new PointF(Pt3j[pl].X , Pt3j[pl].Y),
 new PointF(Pt4j[pl].X , Pt4j[pl].Y),
 new PointF(Pt5j[pl].X , Pt5j[pl].Y),
 ;
 e.Graphics.DrawLine(Pens.Green, Pt1j[pl].X , Pt1j[pl].Y, Pt2j[pl].X, Pt2j[pl].Y);
 e.Graphics.DrawCurve(Pens.Green, pointsj);
 e.Graphics.DrawLine(Pens.Green, Pt5j[pl].X , Pt5j[pl].Y, Pt6j[pl].X, Pt6j[pl].Y);
 
 for (int pl = 0; pl < Pt1DashedGray.Count; pl++)
 
 e.Graphics.DrawLine(Grey, Pt1DashedGray[pl], Pt2DashedGray[pl]);
 PointF pointsdhg = new PointF 
 
 new PointF(Pt2DashedGray[pl].X, Pt2DashedGray[pl].Y),
 new PointF(Pt3DashedGray[pl].X, Pt3DashedGray[pl].Y),
 new PointF(Pt4DashedGray[pl].X, Pt4DashedGray[pl].Y),
 new PointF(Pt5DashedGray[pl].X, Pt5DashedGray[pl].Y),
 ;
 e.Graphics.DrawCurve(Grey, pointsdhg);
 e.Graphics.DrawLine(Grey, Pt5DashedGray[pl], Pt6DashedGray[pl]);
 
 for (int pl = 0; pl < Pt1SolidGray.Count; pl++)
 
 e.Graphics.DrawLine(SolidGrey, Pt1SolidGray[pl], Pt2SolidGray[pl]);
 PointF pointsdhg = new PointF 
 
 new PointF(Pt2SolidGray[pl].X, Pt2SolidGray[pl].Y),
 new PointF(Pt3SolidGray[pl].X, Pt3SolidGray[pl].Y),
 new PointF(Pt4SolidGray[pl].X, Pt4SolidGray[pl].Y),
 new PointF(Pt5SolidGray[pl].X, Pt5SolidGray[pl].Y),
 ;
 e.Graphics.DrawCurve(SolidGrey, pointsdhg);
 e.Graphics.DrawLine(SolidGrey, Pt5SolidGray[pl], Pt6SolidGray[pl]);
 



 for (int pl = 0; pl < Pt1DashGreen.Count; pl++)
 
 e.Graphics.DrawLine(greenPen, Pt1DashGreen[pl], Pt2DashGreen[pl]);
 PointF pointsdhg = new PointF 
 
 new PointF(Pt2DashGreen[pl].X, Pt2DashGreen[pl].Y),
 new PointF(Pt3DashGreen[pl].X, Pt3DashGreen[pl].Y),
 new PointF(Pt4DashGreen[pl].X, Pt4DashGreen[pl].Y),
 new PointF(Pt5DashGreen[pl].X, Pt5DashGreen[pl].Y),
 ;
 e.Graphics.DrawCurve(greenPen, pointsdhg);
 e.Graphics.DrawLine(greenPen, Pt5DashGreen[pl], Pt6DashGreen[pl]);
 

 for (int i = 0; i < Pt1.Count; i++)
 
 e.Graphics.DrawLine(SolidGreen, Pt1[i], Pt2[i]);
 
 for (int l = 0; l < DashedGreen1.Count; l++)
 
 e.Graphics.DrawLine(greenPen, DashedGreen1[l], DashedGreen2[l]);
 

 for (int k = 0; k < SolidGrey1.Count; k++)
 
 e.Graphics.DrawLine(SolidGrey, SolidGrey1[k], SolidGrey2[k]);
 
 for (int j = 0; j < DashedGrey1.Count; j++)
 
 e.Graphics.DrawLine(Grey, DashedGrey1[j], DashedGrey2[j]);
 
 if (IsDrawing)
 
 e.Graphics.DrawLine(Red, NewPt1.X, NewPt1.Y, NewPt2.X, NewPt2.Y);
 
 if (Draw_Dashed_Green)
 
 e.Graphics.DrawLine(red, DashedGreenPT1, DashedGreenPT2);
 
 if (Draw_Solid_Grey)
 
 e.Graphics.DrawLine(Red, SolidGreyPT1, SolidGreyPT2);
 
 if (Draw_dashed_Grey)
 
 e.Graphics.DrawLine(red, DashedGreyPT1, DashedGreyPT2);
 
 

Need Help
Here is my code so far.
BDW, The point of the line is stored in the list from.
The Drawn lines in Paint event also include the line jumpers which has 6 points on it to make a jumps.

So the only problem is I would like to change the Points of the lines as I use the scroll bar.
Thanks for answering my question.