printDialog pageSetupDialog, PrintDocument, printPreviewDialog

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

namespace prindialog

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }

        private void button1_Click(object sender, EventArgs e)

        {

            pageSetupDialog1.ShowDialog();

        }

        private void printDocument1_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)

        {

            e.Graphics.DrawString(richTextBox1.Text,new Font("Tahoma", 18),Brushes.Black,10,20);

        }

        private void button2_Click(object sender, EventArgs e)

        {

            printPreviewDialog1.ShowDialog();

        }

        private void button3_Click(object sender, EventArgs e)

        {

            printDialog1.ShowDialog();

        }

    }

}