在c＃中将字节数组转换为pdf [英] Convert a byte array to pdf in c#

问题描述

亲爱的所有人，





我需要一些帮助才能将字节数组来自DataBase转换为pdf。有人能给我一个C＃中的例子吗？以下是我到目前为止使用System.IO的

Dear All,


I need some help in converting a byte array "Which Came From DataBase" to pdf. Could someone give me an example of how in C#? Here is what I have so far,

using System.IO;

string sFile = "c:\testpdf.pdf"; //Path
FileStream fs = File.Create(sFile);
BinaryWriter bw = new BinaryWriter(fs); 

我用这个将Pdf文件转换成字节数组：

And I have Used This To Convert The Pdf File Into Byte Array:

FileUpload1.SaveAs(filePathName);
byte[] picArray= System.IO.File.ReadAllBytes(filePathName);

提前感谢，

thanks in advance,

推荐答案

您似乎试图将数据库中的字节写入文件：为什么这会给您带来问题？如果您有字节，只需写下它们：

You seem to be trying to write a byte arry from a database into a file: why is this giving you problems? If you have the bytes, just write them:

File.WriteAllBytes(@"C:\testpdf.pdf", myArrayOfBytes);

（您应该知道这可能会失败 - 权限问题通常会阻止写入HDD的根目录 - 请尝试使用子目录）

(You should be aware that this is likely to fail - permissions problems often prevent writes to the root directory of a HDD - try using a subdirectory instead)

Response.Clear(); 
MemoryStream ms = new MemoryStream(pdfBytearray); 
Response.ContentType = "application/pdf"; 
Response.AddHeader("content-disposition", "attachment;filename=labtest.pdf"); 
Response.Buffer = true; 
ms.WriteTo(Response.OutputStream); 
Response.End(); 

如果是字节数组，可以将其写入磁盘，以便将其保存为* pdf文件。

或

要么，你可以将字节写入响应输出流，用户将提示下载并保存文件。

If it is a byte array, you can write it to disk so it becomes saved as *pdf file.
or
either, you can write the bytes to the response output stream and user will be prompt to download and save the file.

Response.Clear();
Response.ContentType = "application/pdf";
Response.AppendHeader("Content-Disposition", "inline;filename=data.pdf");
Response.BufferOutput = true;
byte[] pdf;
Response.AddHeader("Content-Length", response.Length.ToString());
Response.BinaryWrite(pdf);
Response.End();

您能否看一下这段代码。我从下面给出的链接中得到了它。



http://social.msdn.microsoft.com/Forums/en-US/csharplanguage/thread/6810a67f-66d9-4ce4-87e5-06dbbb754730/ [ ^ ]



希望这会对你有帮助。

Can you please have a look at this code. I got it from the link given below.

http://social.msdn.microsoft.com/Forums/en-US/csharplanguage/thread/6810a67f-66d9-4ce4-87e5-06dbbb754730/[^]

Hope this will help you.

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