3
我在尝试弄清c#打印多个页面时遇到困难。我的应用程序创建一个包含1到10个元素的对象类型列表。每个对象包含2个字符串属性:docTypeNumber和docTypeDescription。一个名为flightnumber的变量也被传入类构造函数。每个实例都是一种文档类型,必须打印为单独的条形码表,其中包含文档类型编号,描述和航班号。大多数多页打印示例都是将文档“溢出”到多个页面上,而不是由多个单独页面组成的页面。我的问题是如何实现这一点。需要帮助从列表中打印多个页面
我是否需要创建一个大文档,并将其泄漏到多个页面上? 我是否必须创建PrintDocument类的多个实例?
任何帮助将不胜感激。
这里是我的代码:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Drawing;
using System.Drawing.Printing;
using System.Windows.Forms;
namespace BarcodeTest
{
class BarcodePrinter
{
public BarcodePrinter(List<DocumentType> type, string flightnumber)
{
docType = type;
flightNumber = flightnumber;
}
//Attributes
private List<DocumentType> docType = new List<DocumentType>();
private string flightNumber;
//helper variables
string docTypeNumber;
string docTypeDescription;
int pageNumber = 1;
int numberOfPages;
private static Font barcodeFont = new Font("3 of 9 Barcode", 24);
private static Font printFont = new Font("Arial", 24);
public void Print()
{
numberOfPages = docType.Count;
PrintDocument pd = new PrintDocument();
foreach (DocumentType type in docType)
{
docTypeNumber = type.DocumentTypeNumber;
docTypeDescription = type.DocumentDescription;
pd.PrintPage += new PrintPageEventHandler(pd_PrintPage);
}//end foreach
#if DEBUG
PrintPreviewDialog printPreview = new PrintPreviewDialog();
printPreview.Document = pd;
printPreview.Show();
#else
pd.Print();
#endif
}// end Print() method
public void pd_PrintPage(Object sender, PrintPageEventArgs e)
{
Graphics g = e.Graphics;
//e.Graphics.PageUnit = GraphicsUnit.Point;
e.Graphics.PageUnit = GraphicsUnit.Inch;
StringFormat stringFormat = new StringFormat();
stringFormat.Alignment = StringAlignment.Center;
stringFormat.LineAlignment = StringAlignment.Center;
Brush br = new SolidBrush(Color.Black);
RectangleF rec1 = new RectangleF(1.9375f, 0f, 4, 1);
RectangleF rec2 = new RectangleF(1.9375f, .5f, 4, 1);
RectangleF rec3 = new RectangleF(1.9375f, 1f, 4, 1);
RectangleF rec4 = new RectangleF(1.9375f, 2, 4, 1);
RectangleF rec5 = new RectangleF(1.9375f, 2.5f, 4, 1);
g.DrawString("Air - " + docTypeDescription, printFont, br, rec1, stringFormat);
g.DrawString("*" + docTypeNumber + "*", barcodeFont, br, rec2, stringFormat);
g.DrawString(docTypeNumber, printFont, br, rec3, stringFormat);
g.DrawString("*" + flightNumber + "*", barcodeFont, br, rec4, stringFormat);
g.DrawString(flightNumber, printFont, br, rec5, stringFormat);
if (pageNumber < numberOfPages)
{
e.HasMorePages = true;
}
else
e.HasMorePages = false;
pageNumber++;
}//end pd_PrintPage Method
}//end BarcodePrinter Class
}//end namespace