调试易

//linesPerPage=e.MarginBounds.Height/printFont.GetHeight(g);
//其中printFont.GetHeight(g)为字的高度
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.IO;
using System.Drawing.Printing;namespace PrintDocumentTest
{
/// <summary>
/// Form1 的摘要说明。
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.RichTextBox richTextBox1;
private System.Windows.Forms.Button button1;
private System.Drawing.Printing.PrintDocument printDocument1;
private System.IO.StringReader lineReader;
/// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.Container components = null; public Form1()
{
//
// Windows 窗体设计器支持所必需的
//
InitializeComponent(); //
// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
//
} /// <summary>
/// 清理所有正在使用的资源。
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null) 
{
components.Dispose();
}
}
base.Dispose( disposing );
} #region Windows Form Designer generated code
/// <summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
/// </summary>
private void InitializeComponent()
{
this.richTextBox1 = new System.Windows.Forms.RichTextBox();
this.button1 = new System.Windows.Forms.Button();
this.printDocument1 = new System.Drawing.Printing.PrintDocument();
this.SuspendLayout();
// 
// richTextBox1
// 
this.richTextBox1.Location = new System.Drawing.Point(0, 16);
this.richTextBox1.Name = "richTextBox1";
this.richTextBox1.Size = new System.Drawing.Size(288, 216);
this.richTextBox1.TabIndex = 0;
this.richTextBox1.Text = "richTextBox1";
// 
// button1
// 
this.button1.Location = new System.Drawing.Point(88, 232);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(104, 32);
this.button1.TabIndex = 1;
this.button1.Text = "button1";
this.button1.Click += new System.EventHandler(this.button1_Click);
// 
// printDocument1
// 
this.printDocument1.PrintPage += new System.Drawing.Printing.PrintPageEventHandler(this.printDocument1_PrintPage);
// 
// Form1
// 
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(292, 273);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
  this.button1,
  this.richTextBox1});
this.Name = "Form1";
this.Text = "Form1";
this.Load += new System.EventHandler(this.Form1_Load);
this.ResumeLayout(false); }
#endregion /// <summary>
/// 应用程序的主入口点。
/// </summary>
[STAThread]
static void Main() 
{
Application.Run(new Form1());
} private void Form1_Load(object sender, System.EventArgs e)
{

} private void button1_Click(object sender, System.EventArgs e)
{
PrintDialog printDialog=new PrintDialog();
printDialog.Document=printDocument1;
lineReader=new StringReader(richTextBox1.Text);
if(printDialog.ShowDialog()==DialogResult.OK)
{
try
{
printDocument1.Print();
}
catch(Exception ex)
{
MessageBox.Show(ex.Message.ToString());
//printDocument1.PrintController.OnEndPage(printDocument1,new System.Drawing.Printing.PrintEventArgs());
} }
} private void printDocument1_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)
{
Graphics g=e.Graphics;
float linesPerPage=0;
float yPosition=0;
int count=0;
float leftMargin=e.MarginBounds.Left;
float topMargin=e.MarginBounds.Top;
string line=null;
Font printFont=this.richTextBox1.Font;
SolidBrush myBrush=new SolidBrush(Color.Black);
linesPerPage=e.MarginBounds.Height/printFont.GetHeight(g);
while(count<linesPerPage&&((line=lineReader.ReadLine())!=null))
{
yPosition=topMargin+(count*printFont.GetHeight(g));
g.DrawString(line,printFont,myBrush,leftMargin,yPosition,new StringFormat());
count++;
}
g.DrawString("ksfksakdkksfkaskfsdk",this.Font,new SolidBrush(Color.Black),200,200);
if(line!=null)
e.HasMorePages=true;
else
e.HasMorePages=false;
}
}
}