datagridview print

you can also check below link

http://www.codeproject.com/Articles/43569/Printing-a-datagridview-in-C-NET

http://www.mindstick.com/Articles/2ea844ec-2b41-4a86-b931-fcbc6e4fb6c2/?Datagridview%20Printing%20in%20C

http://jeremycomer.com/blog/?p=64

try as below

private void button2_Click(object sender, EventArgs e)
        {
            printDocument1.Print(); 
        }

private void printDocument1_PrintPage(object sender,

                  System.Drawing.Printing.PrintPageEventArgs e)

        {

            PaintEventArgs myPaintArgs = new PaintEventArgs(e.Graphics,

                                 new Rectangle(new Point(0, 0), this.Size));

            this.InvokePaint(dataGridView1, myPaintArgs);

        }