Printing custom control

[watashiforu]

Hello,

I have a custom control, graphChart. I am using this control to draw graph, area , shape etc.

MainForm is using this control. I want to print some part of graph.

For example, my graph has grid, labels, shapes. I want to print only shapes.

If it is whole graph, I can use control.CreateGraphics() but I want to print some part.

Is there any way to achieve it?

With regard,

[Pickels]

What do you mean by print? Do you mean you only want to draw specific element of the control? If so, show the OnPaint code.

[[email protected]]

One down and dirty way is to get the image of the control into a bitmap the you can manipulate the image however you want, including drawing over regions that you dont want.

[watashiforu]

@Pickels
You are right. Thats is what I am trying to do.
Here is my code (psudo code)


In My chartUserControl

public Graphics graphicWithoutData;

private void drawingPanel_Paint_1(object sender, PaintEventArgs e)

{

Graphics g = e.Graphics

DrawGrid(g);

DrawShape(g);

graphicWithoutData = g;

//I even tried with bitmap
Size s = this.Size;
BitmapWithoutDistData = new Bitmap(s.Width, s.Height, g);

DrawData(g);

}

when i try to access graphicWithoutData (public member) in my main form, it gave me an exception : Invalid parameter.
When I try to print BitmapWithoutDistData (public member) in my main form, it was blank
Is there any wrong in my way of approach to this problem.
If you know any other way let me know.

@[email protected]
Above is my code. But even that bitmap (BitmapWithoutDistData) is blank. i.e when I print it on doc it was blank

[[email protected]]

try doing it this way

        private void drawingPanel_Paint_1(object sender, PaintEventArgs e)
        {

            using (Bitmap bmp = new Bitmap(s.Width, s.Height))
            {
                using (Graphics g = Graphics.FromImage(bmp))
                {
                    DrawGrid(g);
                    DrawShape(g);
                }
                //At this point bmp should be the image I think you are looking for
                e.Graphics.DrawImage(bmp) ;
                DrawData(e.Graphics);
            }

        }

[watashiforu]

Thanks, thanks a lot