PrintForm

private void button1_Click(object sender, EventArgs e) 
{ 

     printForm1.PrintAction = System.Drawing.Printing.PrintAction.PrintToPreview; 

     //在PrintAction可選擇 PrintToFile、PrintToPreview(列印預覽)、PrintToPrinter(列印到印表機) 

     printForm1.Form = this; 

     printForm1.Print(); 

 }