自定义打印的问题请教

Question

我是用Graphics来画出要打印的内容的，一次要连续打印好几张(不同的内容)，用了e.HasMorePages = true;但是却变成死循环了。
比如，我第一页要打印AA，第二页要打印CC，第三页要打印DD，该怎么实现啊。

Answer 1

打印分页如果做不好就会出现死循环
你把整个打印方法看成一个while循环
需要分页的时候就跳出来
打印完了e.HasMorePages = false就可以了

Answer 2

这样试试//方法1
this.printDocument1.DefaultPageSettings.PaperSize = new System.Drawing.Printing.PaperSize("A3", A3纸宽度, A3纸高度);//方法2
foreach (PaperSize ps in printDocument1.DefaultPageSettings.PrinterSettings.PaperSizes)
{
    if (ps.Kind.ToString().Equals(System.Drawing.Printing.PaperKind.A3.ToString()))
    {
        this.printDocument1.DefaultPageSettings.PaperSize = ps;
    }
}

Answer 3

以下代码环境为 Dot Net FrameWork 3.5,VS2008中测试打印测试类using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Drawing.Printing;
using System.Windows.Forms;
using System.Drawing;namespace Test
{
    /// <summary>
    /// 打印测试
    /// </summary>
    public class PrintTest
    {
        private PrintDocument printDoc = null;     //打印文档
        private PrintPreviewDialog preivewDialog = null;        //预览对话框        private int currentPage = 1;        //当前页        /// <summary>
        /// 构造函数
        /// </summary>
        public PrintTest()
        {
            printDoc = new PrintDocument();
            preivewDialog = new PrintPreviewDialog();            preivewDialog.Document = printDoc;            //打印事件
            printDoc.PrintPage += new PrintPageEventHandler( printDoc_PrintPage );            //在访问页面设置前
            printDoc.QueryPageSettings += new QueryPageSettingsEventHandler( printDoc_QueryPageSettings );            //以下三行代码不是必须的            //关闭预览的自动缩放
            preivewDialog.PrintPreviewControl.AutoZoom = false;            //显示比例为100%
            preivewDialog.PrintPreviewControl.Zoom = 1.0D;            //预览窗口最大化
            ( (Form)preivewDialog ).WindowState = FormWindowState.Maximized;        }        /// <summary>
        /// 预览
        /// </summary>
        public void Print()
        {
            preivewDialog.ShowDialog();            //打印换成下面的
            //printDoc.Print();
        }        //设置纸张
        void printDoc_QueryPageSettings( object sender, QueryPageSettingsEventArgs e )
        {
            if ( currentPage == 1 )
            {
                //A3
                foreach ( PaperSize ps in e.PageSettings.PrinterSettings.PaperSizes )
                {
                    if ( ps.Kind.ToString().Equals( System.Drawing.Printing.PaperKind.A3.ToString() ) )
                    {
                        e.PageSettings.PaperSize = ps;
                    }
                }
            }
            else
            {
                //A4
                foreach ( PaperSize ps in e.PageSettings.PrinterSettings.PaperSizes )
                {
                    if ( ps.Kind.ToString().Equals( System.Drawing.Printing.PaperKind.A4.ToString() ) )
                    {
                        e.PageSettings.PaperSize = ps;
                    }
                }
            }
        }        /// <summary>
        /// 打印
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        void printDoc_PrintPage( object sender, PrintPageEventArgs e )
        {
            switch ( currentPage )
            {
                case 1:
                    //第一页内容
                    e.Graphics.DrawString( string.Format( "第 {0} 页,这一页是A3", currentPage ), new Font( "黑体", 20 ), new SolidBrush( Color.Red ), new PointF( 10f, 10f ) );
                    break;                case 2:
                    //第二页内容
                    e.Graphics.DrawString( string.Format( "第 {0} 页,这一页是A4", currentPage ), new Font( "黑体", 20 ), new SolidBrush( Color.Red ), new PointF( 10f, 10f ) );
                    break;                case 3:
                    //第三页
                    e.Graphics.DrawString( string.Format( "第 {0} 页,这一页是A4", currentPage ), new Font( "黑体", 20 ), new SolidBrush( Color.Red ), new PointF( 10f, 10f ) );
                    break;                case 4:
                    //第四页
                    e.Graphics.DrawString( string.Format( "第 {0} 页,这一页是A4", currentPage ), new Font( "黑体", 20 ), new SolidBrush( Color.Red ), new PointF( 10f, 10f ) );
                    break;            }            if ( currentPage < 4 )
            {
                currentPage++;
                e.HasMorePages = true;
            }
            else
            {
                currentPage = 1;
                e.HasMorePages = false;
            }
        }
    }
}调用示例        private void button3_Click( object sender, EventArgs e )
        {
            PrintTest t = new PrintTest();
            t.Print();
        }

Answer 4

int index=0;
//打印事件
        private void pd_PrintPage(object sender, PrintPageEventArgs e)
{
switch (index)
{
case 0:
//your print code
index++;
e.HasMorePages = true;
break;
case 1:
//your print code
index++;
e.HasMorePages = true;
break;
case 2:
//your print code
index = 0;
e.HasMorePages = false;
break;
}
}