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MemoryStream Return Jibberish

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This message was discovered on ASPFriends.com 'aspngfreeforall' list.

Scott Austin

Hello, I'm trying to use a MemoryStream in my application and am not
having any luck. Below is a simple example that reads a file, writes it
to a Memorystream and then writes it to another file. My objective is
not to copy a file but to use the memoryStream object, Im reading and
writing a file to illustrate this broken example. I greatly appreciate
any you can provide!

FileStream fs =3D new
FileStream(@"c:\del\officeview.jpg",FileMode.Open,FileAccess.Read);

byte[] buffer =3D new byte[fs.Length];
fs.Read(buffer, 0, buffer.Length);
fs.Close();            =09

MemoryStream ms =3D new MemoryStream();
ms.Write(buffer,0,buffer.Length);
        =09
byte[] bufferFromMemory =3D new byte[ms.Length];
ms.Read(bufferFromMemory, 0, (int)ms.Length);
        =09
FileStream fsw =3D new
FileStream(@"c:\del\officeview1.jpg",FileMode.Create,FileAccess.Write);

fsw.Write(bufferFromMemory,0,bufferFromMemory.Length);
fsw.Close();

Reply to this message...

Brown, Telly

I think you have to reset to position of the memorystream to 0

-----Original Message-----
From: Scott Austin [mailto:Click here to reveal e-mail address]
Sent: Thursday, August 08, 2002 11:13 AM
To: aspngfreeforall
Subject: [aspngfreeforall] MemoryStream Return Jibberish

Hello, I'm trying to use a MemoryStream in my application and am not
having any luck. Below is a simple example that reads a file, writes it
to a Memorystream and then writes it to another file. My objective is
not to copy a file but to use the memoryStream object, Im reading and
writing a file to illustrate this broken example. I greatly appreciate
any you can provide!

FileStream fs = new
FileStream(@"c:\del\officeview.jpg",FileMode.Open,FileAccess.Read);

byte[] buffer = new byte[fs.Length];
fs.Read(buffer, 0, buffer.Length);
fs.Close();

MemoryStream ms = new MemoryStream();
ms.Write(buffer,0,buffer.Length);

byte[] bufferFromMemory = new byte[ms.Length];
ms.Read(bufferFromMemory, 0, (int)ms.Length);

FileStream fsw = new
FileStream(@"c:\del\officeview1.jpg",FileMode.Create,FileAccess.Write);

fsw.Write(bufferFromMemory,0,bufferFromMemory.Length);
fsw.Close();

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Reply to this message...

Yadav, Sanjeev (USPC.PCT.Hopewell)

I think you are missing ms.Position = 0
after ms.write

this should give you results.

-sanjeev

-----Original Message-----
From: Scott Austin [mailto:Click here to reveal e-mail address]
Sent: Thursday, August 08, 2002 12:13 PM
To: aspngfreeforall
Subject: [aspngfreeforall] MemoryStream Return Jibberish

Hello, I'm trying to use a MemoryStream in my application and am not
having any luck. Below is a simple example that reads a file, writes it
to a Memorystream and then writes it to another file. My objective is
not to copy a file but to use the memoryStream object, Im reading and
writing a file to illustrate this broken example. I greatly appreciate
any you can provide!

FileStream fs = new
FileStream(@"c:\del\officeview.jpg",FileMode.Open,FileAccess.Read);

byte[] buffer = new byte[fs.Length];
fs.Read(buffer, 0, buffer.Length);
fs.Close();

MemoryStream ms = new MemoryStream();
ms.Write(buffer,0,buffer.Length);

byte[] bufferFromMemory = new byte[ms.Length];
ms.Read(bufferFromMemory, 0, (int)ms.Length);

FileStream fsw = new
FileStream(@"c:\del\officeview1.jpg",FileMode.Create,FileAccess.Write);

fsw.Write(bufferFromMemory,0,bufferFromMemory.Length);
fsw.Close();

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| news://ls.asplists.com = NEWSGROUP

Reply to this message...

	System.IO.FileAccess
	System.IO.FileMode
	System.IO.FileStream
	System.IO.MemoryStream

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