.NET打印功能实现 PrintDocument

//打印按钮

private void btnPrint_Click(object sender, EventArgs e)
{
if (this.printDialog1.ShowDialog() == DialogResult.OK)
this.printDocument1.Print();
}

//打印内容设置

private void printDocument1_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)
{
//打印内容 为 局部的 this.panel1
Bitmap _NewBitmap = new Bitmap(panel1.Width, panel1.Height);
panel1.DrawToBitmap(_NewBitmap, new Rectangle(0, 0, _NewBitmap.Width, _NewBitmap.Height));

e.Graphics.DrawImage(_NewBitmap, 0, 0, _NewBitmap.Width, _NewBitmap.Height);
}