如何获取下载的pdf文件的路径 [英] how to get the path of the downloaded pdf file

问题描述

先生，

如何获取下载的pdf文件的路径

贝娄是我的代码

请帮帮我

sir,
how to get the path of the downloaded pdf file
bellow is my code
please help me

protected void Button1_Click(object sender, EventArgs e)
       {
           GeneratePDF();
       }
       private void GeneratePDF()
       {
           DataTable dtTemp = new DataTable();
           dtTemp.Columns.Add("Customer ID");
           dtTemp.Columns.Add("First Name");
           dtTemp.Columns.Add("Last Name");
           dtTemp.Columns.Add("Address");
           dtTemp.Rows.Add("0001", "Peter", "p", "2376, 00800, calicut");
           dtTemp.Rows.Add("0002", "Alfred", "k", "3453, 00800, calicut");
           dtTemp.Rows.Add("0003", "Alice", "n", "6056, 00800, calicut");
           dtTemp.Rows.Add("0004", "Denis", "h", "5672, 00800, calicut");
           dtTemp.Rows.Add("0005", "Paul", "k", "8734, 00800, calicut");
           Document pdfDoc = new Document(PageSize.A4, 30, 30, 40, 25);
           System.IO.MemoryStream mStream = new System.IO.MemoryStream();
           PdfWriter writer = PdfWriter.GetInstance(pdfDoc, mStream);
           int cols = dtTemp.Columns.Count;
           int rows = dtTemp.Rows.Count;
           pdfDoc.Open();

           iTextSharp.text.Table pdfTable = new iTextSharp.text.Table(cols, rows);
           pdfTable.BorderWidth = 1;

           pdfTable.Padding = 1;
           pdfTable.Spacing = 1;

           //creating table headers
           for (int i = 0; i < cols; i++)
           {
               Cell cellCols = new Cell();
               Font ColFont = FontFactory.GetFont(FontFactory.HELVETICA, 12, Font.BOLD);
               Chunk chunkCols = new Chunk(dtTemp.Columns[i].ColumnName, ColFont);
               cellCols.Add(chunkCols);
               pdfTable.AddCell(cellCols);

           }
           //creating table data (actual result)
           for (int k = 0; k < rows; k++)
           {
               for (int j = 0; j < cols; j++)
               {
                   Cell cellRows = new Cell();
                   Font RowFont = FontFactory.GetFont(FontFactory.HELVETICA, 12);
                   Chunk chunkRows = new Chunk(dtTemp.Rows[k][j].ToString(), RowFont);
                   cellRows.Add(chunkRows);
                   pdfTable.AddCell(cellRows);

               }
           }

           pdfDoc.Add(pdfTable);
           pdfDoc.Close();
           Response.ContentType = "application/octet-stream";
           Response.AddHeader("Content-Disposition", "attachment; filename=Report.pdf");

           Response.Clear();
           Response.BinaryWrite(mStream.ToArray());

           Response.End();

       }

推荐答案

看起来就像你实际上并没有创建一个文件硬盘



是啊看看



System.IO.MemoryStream mStream = new System.IO.MemoryStream（ ）;





和



PdfWriter writer = PdfWriter.GetInstance（ pdfDoc，mStream）;





so



http://api.itextpdf.com/itext/com/itextpdf/text/pdf/PdfWriter.html [ ^ ]



PdfWriter



protected PdfWriter（PdfDocument文档，

OutputStream os ）

构造一个PdfWriter。

备注：只能通过调用getInstance方法构造PdfWriter（Documen） t document， OutputStream os ）。



参数：

document - The必须编写的PdfDocument

os - 作者必须写的OutputStream。









并且给你写一个内存流....



http://msdn.microsoft.com/en-us/library/system。 io.memorystream.aspx [ ^ ]



创建一个后备存储为内存的流。





所以我想你需要考虑一下这个



布莱斯

looks to me like you're not actually creating a file onthe hard disk

yeah look

System.IO.MemoryStream mStream = new System.IO.MemoryStream();


and

PdfWriter writer = PdfWriter.GetInstance(pdfDoc, mStream);


so

http://api.itextpdf.com/itext/com/itextpdf/text/pdf/PdfWriter.html[^]

PdfWriter

protected PdfWriter(PdfDocument document,
OutputStream os)
Constructs a PdfWriter.
Remark: a PdfWriter can only be constructed by calling the method getInstance(Document document, OutputStream os).

Parameters:
document - The PdfDocument that has to be written
os - The OutputStream the writer has to write to.




and given you're writing to a memory stream....

http://msdn.microsoft.com/en-us/library/system.io.memorystream.aspx[^]

Creates a stream whose backing store is memory.


so i reckon you need to have a wee think about that

Bryce

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