在Winforms中使用printdocument进行打印时更新控件

PrintDocument printDocument = new PrintDocument();
printDocument.PrintPage += new PrintPageEventHandler(PrintPageHandler);

private void PrintPageHandler(object sender, PrintPageEventArgs e)
{
    Graphics graphics = e.Graphics;
    // 绘制控件内容
    // ...
}

private void PrintPageHandler(object sender, PrintPageEventArgs e)
{
    Graphics graphics = e.Graphics;
    Rectangle marginBounds = e.MarginBounds;
    // 根据需要进行布局和绘制
    // ...
}

private void PrintPageHandler(object sender, PrintPageEventArgs e)
{
    Graphics graphics = e.Graphics;
    Rectangle marginBounds = e.MarginBounds;
    
    // 更新控件内容
    using (Graphics controlGraphics = control.CreateGraphics())
    {
        // 绘制控件内容到打印页面
        graphics.DrawImage(controlGraphics, marginBounds);
    }
    
    // 继续绘制其他内容
    // ...
}