Print_preview in WinForms

Print_preview in WinForms

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Drawing.Printing;

using System.Drawing.Drawing2D;

using System.Drawing.Text ;

using System.Linq;

using System.Text;

using System.Windows.Forms;

namespace print_examples1

{

    public partial class Form1 : Form

    {

            private Font printFont;

                    private StreamReader streamToPrint;

                    private PrintDocument pd = new PrintDocument();

        public Form1()

        {

            InitializeComponent();

        }

        private void button1_Click(object sender, EventArgs e)

        {              

            //print priview button

            try

                   {

               OpenFileDialog ofdlg = new OpenFileDialog();

               ofdlg.Title = "Open Text Files";

               ofdlg.DefaultExt = "txt";

               ofdlg.Filter = "txt files (*.txt)|*.txt|All files (*.*)|*.*";

               ofdlg.FilterIndex = 2;

               if (ofdlg.ShowDialog() == DialogResult.OK)

               {

                   this.Text = ofdlg.FileName.ToString();

                   //string s1=ofdlg.FileName ;

                   streamToPrint = new StreamReader(ofdlg.FileName);

                   try

                   {

                       PrintPreviewDialog ppdlg = new PrintPreviewDialog();

                       ppdlg.Document = pd;

                       ppdlg.ShowDialog();

                   }

                   finally

                   {

                       streamToPrint.Close();

                   }

               }

           }

                        catch (Exception ex)

                        {

                            MessageBox.Show(ex.Message);

                        }

        }

       

        private void pd_PrintPage(object sender, PrintPageEventArgs ev)

                    {

                        float linesPerPage = 0;

                        float yPos = 0;

                        int count = 0;

                        float leftMargin = ev.MarginBounds.Left;

                        float topMargin = ev.MarginBounds.Top;

             

                        string line = null;

             

                        // Calculate the number of lines per page...

                        linesPerPage = ev.MarginBounds.Height / printFont.GetHeight(ev.Graphics);

             

                        // Print each line of the file...

                        while (count < linesPerPage && ((line = streamToPrint.ReadLine()) != null))

                        {

                            yPos = topMargin + (count * printFont.GetHeight(ev.Graphics));

                            ev.Graphics.DrawString(line, printFont, Brushes.Black, leftMargin,

                                yPos);

                            count++;

                        }

             

                        // If more lines exist, print another page...

                        if (line != null)

                            ev.HasMorePages = true;

                        else

                            ev.HasMorePages = false;

                    }

        private void Form1_Load(object sender, EventArgs e)

        {

            printFont = new Font("Arial", 10);

            pd.PrintPage += new PrintPageEventHandler(pd_PrintPage);

       

        }

   

           

    }

}