Question

在我的应用程序中，我正在将数据表数据导出到pdf，它的工作正常，我现在想要添加页眉和页脚，我还要为它添加页码，我还希望页眉包含名称作为报告这页纸。我怎么能这样做？

我写了这样的代码：

public void ExportToPdf(DataTable ExDataTable)
{
    //Here set page size as A4
    Document pdfDoc = new Document(PageSize.A4, 10, 10, 10, 10);

    try
    {
        PdfWriter.GetInstance(pdfDoc, System.Web.HttpContext.Current.Response.OutputStream);
        pdfDoc.Open();

        //Set Font Properties for PDF File
        Font fnt = FontFactory.GetFont("Times New Roman", 6);

        DataTable dt = ExDataTable;

        if (dt != null)
        {
            PdfPTable PdfTable = new PdfPTable(dt.Columns.Count);

            PdfPCell PdfPCell = null;

            //Here we create PDF file tables
            for (int rows = 0; rows < dt.Rows.Count; rows++)
            {
                if (rows == 0)
                {
                    for (int column = 0; column < dt.Columns.Count; column++)
                    {
                        PdfPCell = new PdfPCell(new Phrase(new Chunk(dt.Columns[column].ColumnName.ToString(), fnt)));
                        PdfTable.AddCell(PdfPCell);
                    }
                }

                for (int column = 0; column < dt.Columns.Count; column++)
                {
                    PdfPCell = new PdfPCell(new Phrase(new Chunk(dt.Rows[rows][column].ToString(), fnt)));
                    PdfTable.AddCell(PdfPCell);
                }
            }

            // Finally Add pdf table to the document 
            pdfDoc.Add(PdfTable);
        }

        pdfDoc.Close();

        Response.ContentType = "application/pdf";

        //Set default file Name as current datetime
        Response.AddHeader("content-disposition", "attachment; filename=" + "Line-Shift Report" + ".pdf");

        System.Web.HttpContext.Current.Response.Write(pdfDoc);

        Response.Flush();
        Response.End();
    }

    catch (Exception ex)
    {
        Response.Write(ex.ToString());
    }
}

protected void Button1_Click1(object sender, EventArgs e)
{
    if (Session["source_table"] != null)
    {
        ExportToPdf(Session["source_table"] as DataTable);
    }
    else
    {
        Response.Write("No data to Export!");
    }
}

有人可以帮我吗？

Answer 1

创建新的页面事件类：

public class PageEvents : PdfPageEventHelper  
   {        
       public override void OnStartPage(PdfWriter writer, Document document)  
       {  
           base.OnStartPage(writer, document);    
           document.Add(...header...);  
       }  
   }

现在在你的代码中：

   class Program  
   {  
       static void Main(string[] args)  
       {  
           using (var pdfDoc = new Document(...))  
           {  
               var pdfWriter = PdfWriter.GetInstance(pdfDoc, new FileStream("Test.pdf", FileMode.Create));  
               pdfWriter.PageEvent = new PageEvents();  
               ....

Answer 2

您必须为页眉和页脚创建pdftables。用标题图像/标题填充单元格。在页脚表中，你必须填写第4页的单元格。

将页眉和页脚以及页码添加到pdf

2 个答案: