在.Net Winforms中使用打印预览

using System.Drawing.Printing;
using System.Windows.Forms;

public partial class Form1 : Form
{
    private PrintDocument printDocument = new PrintDocument();
    private PrintPreviewDialog printPreviewDialog = new PrintPreviewDialog();

    public Form1()
    {
        InitializeComponent();

        printDocument.PrintPage += PrintDocument_PrintPage;
        printPreviewDialog.FormClosed += PrintPreviewDialog_FormClosed;
    }

    private void PrintDocument_PrintPage(object sender, PrintPageEventArgs e)
    {
        // 在这里添加需要打印的内容
        e.Graphics.DrawString("Hello, World!", new Font("Arial", 12), Brushes.Black, 100, 100);
    }

    private void PrintPreviewDialog_FormClosed(object sender, FormClosedEventArgs e)
    {
        printDocument.Dispose();
    }

    private void button1_Click(object sender, EventArgs e)
    {
        printPreviewDialog.Document = printDocument;
        printPreviewDialog.ShowDialog();
    }
}