怎么直接打印textbox的内容

如何直接打印textbox的内容？
我现在textbox中准备显示两行内容，想旁边做个按钮，按下后直接把textbox内容输出到打印机打印出来，怎么做？
谢谢

[解决办法]
PrintDocument
[解决办法]
在你的按钮单击事件下加入下面的代码:

C# code

            PrintDocument printDoc = new PrintDocument();            PrintPreviewDialog ppvw = new PrintPreviewDialog();            ppvw.Document = printDoc;            //显示页面的打印预览            printDoc.PrintPage += new System.Drawing.Printing.PrintPageEventHandler(PrintDoc_PrintPage);            printDoc.Print();
[解决办法]
完整代码:
C# code
using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;using System.Drawing.Printing;//打印命名空间namespace Study{    public partial class Form1 : Form    {        public Form1()        {            InitializeComponent();        }        private void Form1_Load(object sender, EventArgs e)        {        }        private void btnCommon_Click(object sender, EventArgs e)        {            PrintDocument printDoc = new PrintDocument();            PrintPreviewDialog ppvw = new PrintPreviewDialog();            ppvw.Document = printDoc;            printDoc.PrintPage += new System.Drawing.Printing.PrintPageEventHandler(PrintDoc_PrintTextValue);            if (ppvw.ShowDialog() != DialogResult.OK)            {                printDoc.PrintPage -= new System.Drawing.Printing.PrintPageEventHandler(PrintDoc_PrintTextValue);//取消打印                return;            }            printDoc.Print();        }        private void PrintDoc_PrintTextValue(object sender, System.Drawing.Printing.PrintPageEventArgs e)        {            try            {                e.Graphics.DrawString(richTextBox1.Text, new Font("宋体", 14, FontStyle.Bold), Brushes.Black, 30, 105);            }            catch (Exception ex)            {                MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);            }        }    }}