在C#中实现打印功能(C#中PrintDialog,PrintDocument的使用） （转）

在C#中实现打印功能的步骤如下：

1. 引入命名空间

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

2. 创建打印对话框

PrintDialog printDialog = new PrintDialog();

3. 显示打印对话框

if (printDialog.ShowDialog() == DialogResult.OK)
{
    // 用户点击了“打印”按钮
}

4. 创建打印文档对象

PrintDocument printDocument = new PrintDocument();

5. 设置打印文档的打印机

printDocument.PrinterSettings = printDialog.PrinterSettings;

6. 设置打印文档的打印事件

printDocument.PrintPage += new PrintPageEventHandler(PrintPage);

7. 实现打印事件

private void PrintPage(object sender, PrintPageEventArgs e)
{
    // 在此处编写打印逻辑
}

8. 开始打印

printDocument.Print();

完整的代码示例：

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

public partial class Form1 : Form
{
    public Form1()
    {
        InitializeComponent();
    }

    private void button1_Click(object sender, EventArgs e)
    {
        PrintDialog printDialog = new PrintDialog();
        if (printDialog.ShowDialog() == DialogResult.OK)
        {
            PrintDocument printDocument = new PrintDocument();
            printDocument.PrinterSettings = printDialog.PrinterSettings;
            printDocument.PrintPage += new PrintPageEventHandler(PrintPage);
            printDocument.Print();
        }
    }

    private void PrintPage(object sender, PrintPageEventArgs e)
    {
        e.Graphics.DrawString("Hello, World!", new Font("Arial", 12), Brushes.Black, new PointF(0, 0));
    }
}