Anyone see the error?

[Scott Meddows]

I'm trying to serve a PDF file from a webpage so it will load in the
browser.. Can anyone tell what is wrong with this code? I've tried
everything

Thanks

Dim httpwreq As System.Net.HttpWebRequest =
CType(System.Net.HttpWebRequest.Create("http://lafdev2/ReportServeProxy/Migr
ationReport.pdf"), System.Net.HttpWebRequest)
Dim httpWResp As System.Net.HttpWebResponse =
CType(httpwreq.GetResponse, System.Net.HttpWebResponse)
Dim receiveStream As IO.Stream = httpWResp.GetResponseStream
Dim encode As System.Text.Encoding =
System.Text.Encoding.GetEncoding("utf-8")
Dim readstream As System.IO.StreamReader = New
System.IO.StreamReader(receiveStream, encode)
Dim read(256) As Char
Dim count As Integer = readstream.Read(read, 0, 256)
Response.Clear()
Response.ClearContent()
Response.ClearHeaders()
Response.ContentType = "application/pdf"
Response.AddHeader("content-length", httpWResp.ContentLength.ToString)
Response.AddHeader("content-disposition", "filename=report.PDF")
While (count > 0)
'Response.BinaryWrite(System.Text.Encoding.UTF8.GetBytes(read))
Dim str As String = New String(read, 0, count)
Response.Write(str) count = readstream.Read(read, 0, 256)
End While
'Response.Flush()
httpWResp.Close()
readstream.Close()
'Response.End()

This is the only code in my page. Can anyone help me out? Thanks

 

[bruce barker]

as you are copying a binary stream, you should use a binary reader and a
binary writer.

-- bruce (sqlwork.com)

 

[john farrow]

Given you have the PDF in 'receiveStream' you can copy it to the response
using something like this, avoiding conversion to UTF-8 or strings but of
which will corrupt the PDF file. This is C# but will work similarly in VB.


byte[] buffer = new byte[1024];

int bytes = 0;

while( ( bytes = receiveStream.Read( buffer, 0,
buffer.Length ) ) > 0 ) {
Response.Write( buffer, 0, bytes );
}

Response.Flush

Regards

John

Visual Programming Ltd mail PO Box 22-222, Khandallah, Wellington, New
Zealand site Level 2, 2 Ganges Road, Khandallah, Wellington, New Zealand
phone +64 4 479 1738 fax +64 4 479 1294
web http://www.xmlpdf.com

 

[Scott Meddows]

How can I convert that array of bytes into an array of char?

Given you have the PDF in 'receiveStream' you can copy it to the response
using something like this, avoiding conversion to UTF-8 or strings but of
which will corrupt the PDF file. This is C# but will work similarly in VB.


byte[] buffer = new byte[1024];

int bytes = 0;

while( ( bytes = receiveStream.Read( buffer, 0,
buffer.Length ) ) > 0 ) {
Response.Write( buffer, 0, bytes );
}

Response.Flush

Regards

John

Visual Programming Ltd mail PO Box 22-222, Khandallah, Wellington, New
Zealand site Level 2, 2 Ganges Road, Khandallah, Wellington, New Zealand
phone +64 4 479 1738 fax +64 4 479 1294
web http://www.xmlpdf.com

as you are copying a binary stream, you should use a binary reader and a
binary writer.

-- bruce (sqlwork.com)

CType(System.Net.HttpWebRequest.Create("http://lafdev2/ReportServeProxy/Migr

 

[mikeb]

How can I convert that array of bytes into an array of char?

You don't want to do this - you want to write the raw bytes.

Use the Response.OutputStream property to get a stream that you can
write byte arrays to.

Given you have the PDF in 'receiveStream' you can copy it to the response
using something like this, avoiding conversion to UTF-8 or strings but of
which will corrupt the PDF file. This is C# but will work similarly in
VB.


byte[] buffer = new byte[1024];

int bytes = 0;

while( ( bytes = receiveStream.Read( buffer, 0,
buffer.Length ) ) > 0 ) {
Response.Write( buffer, 0, bytes );
}

Response.Flush

Regards

John

Visual Programming Ltd mail PO Box 22-222, Khandallah, Wellington, New
Zealand site Level 2, 2 Ganges Road, Khandallah, Wellington, New Zealand
phone +64 4 479 1738 fax +64 4 479 1294
web http://www.xmlpdf.com

as you are copying a binary stream, you should use a binary reader and a
binary writer.

-- bruce (sqlwork.com)


"Scott Meddows" <[email protected]> wrote in

message

I'm trying to serve a PDF file from a webpage so it will load in the
browser.. Can anyone tell what is wrong with this code? I've tried
everything

Thanks

Dim httpwreq As System.Net.HttpWebRequest =

CType(System.Net.HttpWebRequest.Create("http://lafdev2/ReportServeProxy/Migr

ationReport.pdf"), System.Net.HttpWebRequest)
Dim httpWResp As System.Net.HttpWebResponse =
CType(httpwreq.GetResponse, System.Net.HttpWebResponse)
Dim receiveStream As IO.Stream = httpWResp.GetResponseStream
Dim encode As System.Text.Encoding =
System.Text.Encoding.GetEncoding("utf-8")
Dim readstream As System.IO.StreamReader = New
System.IO.StreamReader(receiveStream, encode)
Dim read(256) As Char
Dim count As Integer = readstream.Read(read, 0, 256)
Response.Clear()
Response.ClearContent()
Response.ClearHeaders()
Response.ContentType = "application/pdf"
Response.AddHeader("content-length",
httpWResp.ContentLength.ToString)

Response.AddHeader("content-disposition", "filename=report.PDF")
While (count > 0)

'Response.BinaryWrite(System.Text.Encoding.UTF8.GetBytes(read))

Dim str As String = New String(read, 0, count)
Response.Write(str) count = readstream.Read(read, 0, 256)
End While
'Response.Flush()
httpWResp.Close()
readstream.Close()
'Response.End()

This is the only code in my page. Can anyone help me out? Thanks

 

[Scott Meddows]

Response.write only accepts an array of char

I'd use response.binarywrite BUT the buffer doesn't always fill up to
capacity...

How can I convert that array of bytes into an array of char?

You don't want to do this - you want to write the raw bytes.

Use the Response.OutputStream property to get a stream that you can
write byte arrays to.

Given you have the PDF in 'receiveStream' you can copy it to the response
using something like this, avoiding conversion to UTF-8 or strings but of
which will corrupt the PDF file. This is C# but will work similarly in
VB.


byte[] buffer = new byte[1024];

int bytes = 0;

while( ( bytes = receiveStream.Read( buffer, 0,
buffer.Length ) ) > 0 ) {
Response.Write( buffer, 0, bytes );
}

Response.Flush

Regards

John

Visual Programming Ltd mail PO Box 22-222, Khandallah, Wellington, New
Zealand site Level 2, 2 Ganges Road, Khandallah, Wellington, New Zealand
phone +64 4 479 1738 fax +64 4 479 1294
web http://www.xmlpdf.com


as you are copying a binary stream, you should use a binary reader and a
binary writer.

-- bruce (sqlwork.com)


message


I'm trying to serve a PDF file from a webpage so it will load in the
browser.. Can anyone tell what is wrong with this code? I've tried
everything

Thanks

Dim httpwreq As System.Net.HttpWebRequest =

CType(System.Net.HttpWebRequest.Create("http://lafdev2/ReportServeProxy/Migr

ationReport.pdf"), System.Net.HttpWebRequest)
Dim httpWResp As System.Net.HttpWebResponse =
CType(httpwreq.GetResponse, System.Net.HttpWebResponse)
Dim receiveStream As IO.Stream = httpWResp.GetResponseStream
Dim encode As System.Text.Encoding =
System.Text.Encoding.GetEncoding("utf-8")
Dim readstream As System.IO.StreamReader = New
System.IO.StreamReader(receiveStream, encode)
Dim read(256) As Char
Dim count As Integer = readstream.Read(read, 0, 256)
Response.Clear()
Response.ClearContent()
Response.ClearHeaders()
Response.ContentType = "application/pdf"
Response.AddHeader("content-length",

httpWResp.ContentLength.ToString)

Response.AddHeader("content-disposition", "filename=report.PDF")
While (count > 0)

'Response.BinaryWrite(System.Text.Encoding.UTF8.GetBytes(read))

Dim str As String = New String(read, 0, count)
Response.Write(str) count = readstream.Read(read, 0, 256)
End While
'Response.Flush()
httpWResp.Close()
readstream.Close()
'Response.End()

This is the only code in my page. Can anyone help me out? Thanks

 

[mikeb]

Response.write only accepts an array of char

I'd use response.binarywrite BUT the buffer doesn't always fill up to
capacity...

Assuming buffer is a byte array containing the data you want written,
and bytes is the number of valid bytes in the array (ie., the array is
not filled):

Response.OutputStream.Write( buffer, 0, bytes)

or
byte [] data = new byte [bytes];
Array.Copy( buffer, data, bytes);
Response.BinaryWrite( data);

or something similar.

How can I convert that array of bytes into an array of char?

You don't want to do this - you want to write the raw bytes.

Use the Response.OutputStream property to get a stream that you can
write byte arrays to.

Given you have the PDF in 'receiveStream' you can copy it to the

response

using something like this, avoiding conversion to UTF-8 or strings but

of

which will corrupt the PDF file. This is C# but will work similarly in

VB.


byte[] buffer = new byte[1024];

int bytes = 0;

while( ( bytes = receiveStream.Read( buffer, 0,
buffer.Length ) ) > 0 ) {
Response.Write( buffer, 0, bytes );
}

Response.Flush

Regards

John

Visual Programming Ltd mail PO Box 22-222, Khandallah, Wellington, New
Zealand site Level 2, 2 Ganges Road, Khandallah, Wellington, New Zealand
phone +64 4 479 1738 fax +64 4 479 1294
web http://www.xmlpdf.com



as you are copying a binary stream, you should use a binary reader and

a

binary writer.

-- bruce (sqlwork.com)



message




I'm trying to serve a PDF file from a webpage so it will load in the
browser.. Can anyone tell what is wrong with this code? I've tried
everything

Thanks

Dim httpwreq As System.Net.HttpWebRequest =

CType(System.Net.HttpWebRequest.Create("http://lafdev2/ReportServeProxy/Migr

ationReport.pdf"), System.Net.HttpWebRequest)
Dim httpWResp As System.Net.HttpWebResponse =
CType(httpwreq.GetResponse, System.Net.HttpWebResponse)
Dim receiveStream As IO.Stream = httpWResp.GetResponseStream
Dim encode As System.Text.Encoding =
System.Text.Encoding.GetEncoding("utf-8")
Dim readstream As System.IO.StreamReader = New
System.IO.StreamReader(receiveStream, encode)
Dim read(256) As Char
Dim count As Integer = readstream.Read(read, 0, 256)
Response.Clear()
Response.ClearContent()
Response.ClearHeaders()
Response.ContentType = "application/pdf"
Response.AddHeader("content-length",

httpWResp.ContentLength.ToString)


Response.AddHeader("content-disposition", "filename=report.PDF")
While (count > 0)


'Response.BinaryWrite(System.Text.Encoding.UTF8.GetBytes(read))


Dim str As String = New String(read, 0, count)
Response.Write(str) count = readstream.Read(read, 0, 256)
End While
'Response.Flush()
httpWResp.Close()
readstream.Close()
'Response.End()

This is the only code in my page. Can anyone help me out? Thanks

 

[Scott Meddows]

YOU ARE THE MAN!!!

Response.OutputStream.Write( buffer, 0, bytes) was the ticket.

I was just using response.write.

Thank you VERY much!!! That was the missing piece.

THANK!!!!!!!!!!!!!!!!!

You kept me from working this weekend

Response.write only accepts an array of char

I'd use response.binarywrite BUT the buffer doesn't always fill up to
capacity...

Assuming buffer is a byte array containing the data you want written,
and bytes is the number of valid bytes in the array (ie., the array is
not filled):

Response.OutputStream.Write( buffer, 0, bytes)

or
byte [] data = new byte [bytes];
Array.Copy( buffer, data, bytes);
Response.BinaryWrite( data);

or something similar.

Scott Meddows wrote:

How can I convert that array of bytes into an array of char?

You don't want to do this - you want to write the raw bytes.

Use the Response.OutputStream property to get a stream that you can
write byte arrays to.




Given you have the PDF in 'receiveStream' you can copy it to the
response

using something like this, avoiding conversion to UTF-8 or strings but
of

which will corrupt the PDF file. This is C# but will work similarly in

VB.


byte[] buffer = new byte[1024];

int bytes = 0;

while( ( bytes = receiveStream.Read( buffer, 0,
buffer.Length ) ) > 0 ) {
Response.Write( buffer, 0, bytes );
}

Response.Flush

Regards

John

Visual Programming Ltd mail PO Box 22-222, Khandallah, Wellington, New
Zealand site Level 2, 2 Ganges Road, Khandallah, Wellington, New Zealand
phone +64 4 479 1738 fax +64 4 479 1294
web http://www.xmlpdf.com



as you are copying a binary stream, you should use a binary reader

and

a

binary writer.

-- bruce (sqlwork.com)



message




I'm trying to serve a PDF file from a webpage so it will load in the
browser.. Can anyone tell what is wrong with this code? I've tried
everything

Thanks

Dim httpwreq As System.Net.HttpWebRequest =

CType(System.Net.HttpWebRequest.Create("http://lafdev2/ReportServeProxy/Migr

ationReport.pdf"), System.Net.HttpWebRequest)
Dim httpWResp As System.Net.HttpWebResponse =
CType(httpwreq.GetResponse, System.Net.HttpWebResponse)
Dim receiveStream As IO.Stream = httpWResp.GetResponseStream
Dim encode As System.Text.Encoding =
System.Text.Encoding.GetEncoding("utf-8")
Dim readstream As System.IO.StreamReader = New
System.IO.StreamReader(receiveStream, encode)
Dim read(256) As Char
Dim count As Integer = readstream.Read(read, 0, 256)
Response.Clear()
Response.ClearContent()
Response.ClearHeaders()
Response.ContentType = "application/pdf"
Response.AddHeader("content-length",

httpWResp.ContentLength.ToString)


Response.AddHeader("content-disposition", "filename=report.PDF")
While (count > 0)


'Response.BinaryWrite(System.Text.Encoding.UTF8.GetBytes(read))


Dim str As String = New String(read, 0, count)
Response.Write(str) count = readstream.Read(read, 0, 256)
End While
'Response.Flush()
httpWResp.Close()
readstream.Close()
'Response.End()

This is the only code in my page. Can anyone help me out? Thanks