Re: Problem with Response.TransmitFile

[Daniel Fisher\(lennybacon\)]

You should not use the built in method for such big downloads. Use

Context.Response.Buffer=false;
FileStream inStr = null;
byte[] buffer = new byte[1024];
long byteCount;

inStr = File.OpenRead(filePath);
while ((byteCount = inStr.Read(buffer, 0, buffer.Length)) > 0)
{
if(Context.Response.IsClientConnected)
{
Context.Response.OutputStream.Write(buffer, 0, buffer.Length);
Context.Response.Flush();
}
}

instead and sent the file bitwise.

--Daniel Fisher(lennybacon)

 

[Guest]

Hi,

Thank you very much for the suggestion!
Do you have the code in VB format, my project is programmed in Vb…

Thanks again,
Thomas Andersson

You should not use the built in method for such big downloads. Use

Context.Response.Buffer=false;
FileStream inStr = null;
byte[] buffer = new byte[1024];
long byteCount;

inStr = File.OpenRead(filePath);
while ((byteCount = inStr.Read(buffer, 0, buffer.Length)) > 0)
{
if(Context.Response.IsClientConnected)
{
Context.Response.OutputStream.Write(buffer, 0, buffer.Length);
Context.Response.Flush();
}
}

instead and sent the file bitwise.

--Daniel Fisher(lennybacon)

Hi,

I have a problem with Response.TransmitFile.
The server reset the connection after approx. 20 minutes and sometimes
after
7-8 minutes when i try to download large files (400MB +) with
Response.TransmitFile.

What can be the problem?

I have tried to use httpRuntime executionTimeout="14400"
maxRequestLength="1048576".

Any ideas?

 

[Guest]

Hi,

Thank you very much for the suggestion!
Do you have the code in VB format, my project is programmed in Vb…

I have tryed to use the code below, but it wont work...

Dim AbsFilePath As String
AbsFilePath = Server.MapPath(FilePath)
Response.Buffer = False
Server.ScriptTimeout = 30000
Page.Response.ClearHeaders()
'Set the content type
Response.ContentType = "application/pdf"
Response.AddHeader("Content-Disposition", "attachment; filename=" & FileName)

Dim DownloadStream As FileStream
Dim Buffer(1024) As Byte
Dim ByteCount As Long
DownloadStream = File.OpenRead(AbsFilePath)
Dim FileSize = DownloadStream.Length
Response.AddHeader("Content-Length", FileSize)

While ((ByteCount = DownloadStream.Read(Buffer, 0, Buffer.Length)) > 0)
If (Context.Response.IsClientConnected) Then
Context.Response.OutputStream.Write(Buffer, 0, Buffer.Length)
Context.Response.Flush()
End If
End While

DownloadStream.Close()
Response.End()

I also have two other problems...

1. I use Response.ContentType = "application/pdf", but if the filename is
test.txt the download window shows that it is a text file.
How can I force it to show pdf instead?

2. If I download a file with the name Test_1.1.1.txt, Internet Explorer
renames it to
Test_1[1].1.1.txt.
How can I force it to keep the name Test_1.1.1.txt?

You should not use the built in method for such big downloads. Use

Context.Response.Buffer=false;
FileStream inStr = null;
byte[] buffer = new byte[1024];
long byteCount;

inStr = File.OpenRead(filePath);
while ((byteCount = inStr.Read(buffer, 0, buffer.Length)) > 0)
{
if(Context.Response.IsClientConnected)
{
Context.Response.OutputStream.Write(buffer, 0, buffer.Length);
Context.Response.Flush();
}
}

instead and sent the file bitwise.

--Daniel Fisher(lennybacon)

Hi,

I have a problem with Response.TransmitFile.
The server reset the connection after approx. 20 minutes and sometimes
after
7-8 minutes when i try to download large files (400MB +) with
Response.TransmitFile.

What can be the problem?

I have tried to use httpRuntime executionTimeout="14400"
maxRequestLength="1048576".

Any ideas?