Hi everyone,
I am trying to store a file as a binary array in an "image" field in SQL
Server 2000 database.
It works OK except for the ".PDF" files, which I believe get corrupted in
the
process of reading a stream to a byte array.
Uploading and downloading seems to work fine, but "Acrobat" pop ups
"The file is damaged and could not be repaired" error.
Is there any way I can make this to work.
Following is a pseudo code of what I am trying to accomplish.
//Uploading a file browser->web server
//get file size (theFile is a VS "file field" component )
int fileSize = theFile.PostedF ile.ContentLeng th;
//get file as binary stream
Stream fileStream = theFile.PostedF ile.InputStream ;
//create byte array to keep file as bytes
byte[] bArray = new byte[fileSize];
//load array from stream
fileStream.Read (bArray , 0, size);
//At this point bArray is saved to DataBase
//Downloading file
//read image field from database and typecast as byte array
byte [] bArray = GetBinaryArrayF romDB()
string fileName = GetFileName();
string fileType = GetMIMEFileType ();
//Send file to the browser
Response.AddHea der("Content-Disposition", "attachment ; filename=" +
fileName);
Response.Conten tType = fileType;
Response.Binary Write(bArray);
1  5788 
Angel Filev wrote: Hi everyone,
I am trying to store a file as a binary array in an "image" field in
SQL Server 2000 database. It works OK except for the ".PDF" files,
which I believe get corrupted in the process of reading a stream to a
byte array. Uploading and downloading seems to work fine, but
"Acrobat" pop ups "The file is damaged and could not be repaired"
error. Is there any way I can make this to work.
Following is a pseudo code of what I am trying to accomplish.
//Uploading a file browser->web server
//get file size (theFile is a VS "file field" component )
int fileSize = theFile.PostedF ile.ContentLeng th;
//get file as binary stream
Stream fileStream = theFile.PostedF ile.InputStream ;
//create byte array to keep file as bytes
byte[] bArray = new byte[fileSize];
//load array from stream
fileStream.Read (bArray , 0, size);
//At this point bArray is saved to DataBase
//Downloading file
//read image field from database and typecast as byte array
byte [] bArray = GetBinaryArrayF romDB()
string fileName = GetFileName();
string fileType = GetMIMEFileType ();
//Send file to the browser
Response.AddHea der("Content-Disposition", "attachment ; filename=" +
fileName); Response.Conten tType = fileType;
Response.Binary Write(bArray);
Your not-so-pseudo-code looks ok ;-)
What happens if you set a Content-Length header with the value of
bArray.Length? Older Acrobat plugins require Content-Length.
Cheers,
-- http://www.joergjooss.de
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