Graphics

katelva wrote:

This is my first time asking the question on this website

Luc Pattyn wrote:

You forgot to post in the SQL forum

Mark Salsbery
Microsoft MVP - Visual C++

Mark Salsbery wrote:

...and the Silverlight forum too!

programmingAddict wrote:

I'm not sure how your invalidating your form but if your invalidating the entire area everytime the dynamic rectangle is resized then you will see a performance hit.

private void DrawChart()<br />
{<br />
     TimewayChartControl.CreatBufferGraphics();   <-----create buffergraphic<br />
     TimewayChartControl.RenderLinePath();        <-----draw line<br />
}

BufferedGraphicsContext CurrentContext = BufferedGraphicsManager.Current;<br />
BufferedGraphics bg;

public void CreatBufferGraphics()<br />
{<br />
    bg = CurrentContext.Allocate(this.CreateGraphics(), this.ClientRectangle);<br />
    bg.Graphics.TextRenderingHint = TextRenderingHint.AntiAlias;<br />
    bg.Graphics.Clear(this.BackColor);<br />
}

private void DrawLinePath(Graphics g)<br />
{<br />
    //some coding here.....<br />
    g.DrawPath(LinePathPen, gpLine);<br />
}

protected override void OnPaint(PaintEventArgs pe)<br />
{<br />
   //draw the image into the screen<br />
   bg.Render(pe.Graphics);<br />
}