加入兩個控制元件PrintPreviewDiaog和PrintDocument

給PrintDocument新增事件:

private void printDocument1_PrintPage(object sender, PrintPageEventArgs e)

{

Graphics g = e。

Graphics;

using (Font font = new Font("Lucda Console", 36))

{

g。DrawString(richTextBox1。

Text, font, Brushes。Black, 0, 0);//或者是從檔案中讀取txt;

page;

e。HasMorePages = (page

}

}

page = 1;

maxPage = totalPage;//最大有多少頁面就設定多少

printDocument1。

DocumentName = doc;

printPreviewDialog1。Document = printDocument1;

printPreviewDialog1。ShowDialog();

//這是我編寫的一個預覽TXT檔案的程式碼

using System;

using System。

Collections。Generic;

using System。ComponentModel;

using System。Data;

using System。Drawing;

using System。

Text;

using System。Windows。Forms;

using System。IO;

using System。Drawing。Printing;

namespace WindowsApplication14

{

public partial class Form1 : Form

{

public Form1()

{

InitializeComponent();

this。

printPreviewDialog1 = new PrintPreviewDialog();

}

int page;

int maxPage;

String path;

String[] Lines;

private void printDocument1_PrintPage(object sender, PrintPageEventArgs e)

{

Graphics g = e。

Graphics;

using (Font font = new Font("Lucda Console", 12))

{

int index = 0;

while ((page * 20 index)

Length && index != pageRows)

{

g。DrawString(Lines[page * 20 index], font, Brushes。Black, 20, 20 30 * index);

index ;

}

page;

e。

HasMorePages = (page

}

}

public const int pageRows = 37;

public const int rowNumber = 42;

private void button1_Click(object sender, EventArgs e)

{

OpenFileDialog open = new OpenFileDialog();

open。

Filter = "txt|*。txt";

if (open。ShowDialog() == DialogResult。OK)

{

page = 0;

path = open。

FileName;

StringArray sa = new StringArray(0);

try

{

Lines = File。ReadAllLines(path, Encoding。

GetEncoding(0, EncoderFallback。ExceptionFallback, DecoderFallback。ExceptionFallback));

}

catch { Lines = File。

ReadAllLines(path, Encoding。UTF8); }

for (int i = 0; i

{

int length = Lines[i]。

Length;

for (int j = 0; j

{

sa。Add(Lines[i]。Substring(j * rowNumber, rowNumber));

}

sa。

Add(Lines[i]。Substring((length / rowNumber) * rowNumber));

}

Lines = sa。Lines;

maxPage = Lines。

Length / pageRows 1;

printDocument1。DocumentName = path;

printPreviewDialog1。Document = printDocument1;

printPreviewDialog1。

ShowDialog();

}

else

{

return;

}

}

}

}。