C#编程-137：PrintPreviewControl打印预览控件

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 PrintPreviewTest
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        private void Form1_Load(object sender, EventArgs e)
        {
            printPreviewControl1.Visible = false;
            btnCancel.Enabled = false;
        }
        private void btnPreview_Click(object sender, EventArgs e)
        {
            try
            {
                printPreviewControl1.Document = printDocument1;
                printPreviewControl1.Visible = true;
                btnCancel.Enabled = true;
                btnPreview.Enabled = false;
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message,"预览出错",MessageBoxButtons.OK,MessageBoxIcon.Error);
            }
        }
        private void btnCancel_Click(object sender, EventArgs e)
        {
            printPreviewControl1.Visible = false;
            btnCancel.Enabled = false;
            btnPreview.Enabled = true;
        }
        private void printDocument1_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)
        {
            int x = e.PageBounds.Left+10;
            int y = e.PageBounds.Top+50;
            Graphics g = e.Graphics;
            Font font = new Font("黑体",100);
            SolidBrush brush = new SolidBrush(Color.Green);
            string text="此处输入需要打印的内容";
            g.DrawString(text,font,brush,x,y);
        }
    }
}