Response.BinaryWrite

[Laurahn]

Hi:

I'm dealing with a file type when i convert it from a BLOB field on database and i use the Response.BinaryWrite method. The file type is *.chm. That's my code:

Private Sub ReadFile(ByVal MyData() as Byte)
If Not MyData Is System.DBNull.Value then
Response.Buffer = True
Response.ContentType ="application/octet-stream"
Response.BinaryWrite(MyData)
End If
End Sub


When i retrieve different type of file "Response.ContentType = "application/msword"" the code works fine. I can see the file on the IE or download the file to disk.

Can someone tell me, how can i retrieve *.chm files from database to end user. I want to make a simple download of the file.

 

[Juan T. Llibre]

See Rick Strahl's recommendations at :

http://www.west-wind.com/WebLog/posts/2928.aspx

Bottom line : don't try to stream chm files directly for client usage.
Always have them downloaded to the client and let the client open them later.




Hi:

I'm dealing with a file type when i convert it from a BLOB field on database and i use the
Response.BinaryWrite method. The file type is *.chm. That's my code:

Private Sub ReadFile(ByVal MyData() as Byte)
If Not MyData Is System.DBNull.Value then
Response.Buffer = True
Response.ContentType ="application/octet-stream"
Response.BinaryWrite(MyData)
End If
End Sub


When i retrieve different type of file "Response.ContentType = "application/msword"" the code works
fine. I can see the file on the IE or download the file to disk.

Can someone tell me, how can i retrieve *.chm files from database to end user. I want to make a
simple download of the file.

 

[Laurahn]

I got the answer:

Is needed to use a diferent parameter for download a *.chm file:

Response.AddHeader("Content-Disposition", "attachment;filename=MyFile.chm")

 

[Walter Wang [MSFT]]

Hi Laurahn,

I just saw your post and I'm glad you've found the solution. For your
reference, here's a KB might be useful for you:

#HOW TO: Read and Write BLOB Data by Using ADO.NET Through ASP.NET
http://support.microsoft.com/kb/326502

This KB describes a similar scenario like yours.

Please feel free to reply here if there's anything else I can help.

Sincerely,
Walter Wang ([email protected], remove 'online.')
Microsoft Online Community Support

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