c# - 以多种形式打印面板数据 C#

Question

我在 C# Winforms 应用程序中有一个面板，我需要在多个页面中打印它的内容。我使用了以下代码，我知道它在某处需要修改，请帮助我...

private void PrintP_Load(object sender, EventArgs e)
{
    tableLayoutPanel1.AutoSize = false; ;
    tableLayoutPanel1.GrowStyle = TableLayoutPanelGrowStyle.AddRows;

    Print(this.panel2);
    this.Close();
}

Bitmap MemoryImage;
int page=0;

public void GetPrintArea(Panel pnl)
{
    page = 0;
    MemoryImage = new Bitmap(pnl.Width, pnl.Height);
    Rectangle rect = new Rectangle(0, 0, pnl.Width, pnl.Height);
    pnl.DrawToBitmap(MemoryImage, new Rectangle(0, 0, pnl.Width, pnl.Height));
}

protected override void OnPaint(PaintEventArgs e)
{
    if (MemoryImage != null)
    {
        e.Graphics.DrawImage(MemoryImage, 0, 0);
        base.OnPaint(e);
    }
}


void printDocument1_PrintPage(object sender, PrintPageEventArgs e)
{
    var pagearea = e.PageBounds;
    e.Graphics.DrawImage(MemoryImage, new Rectangle(e.PageBounds.Location, e.PageBounds.Size), new Rectangle(e.PageBounds.Location.X, e.PageBounds.Height * page, e.PageBounds.Width, e.PageBounds.Height), GraphicsUnit.Pixel);
    e.HasMorePages = e.PageBounds.Height * page < panel2.Size.Height;
    page++;
}

public void Print(Panel pnl)
{
    panel2 = pnl;
    GetPrintArea(pnl);

    printPreviewDialog1.Document = printDocument1;
    printPreviewDialog1.ShowDialog();
}