Hi all,
My WebService connects to a database server, client application connects to
the WebService. There is a backup method in WebService backups database and
sends compressed data back to the client app. The client app then generates
a zip file using the compressed data. I tried Xceed's Zip library, it can do
the job well, but its price is kind of expensive. Is there any other
alternative method can compress data in memory?
Best Regards,
Wencheng
7  2685 
Wencheng, There is a backup method in WebService backups database and sends
compressed data back to the client app. The client app then generates a
zip file using the compressed data. Is there any other alternative method
can compress data in memory?
I'm not aware of any ready-made compression utilities in .NET 1.1, but if
you are targeting .NET 2.0, then you might wish too look at the new
System.IO.Compression namespace. This is an alternative to the zip library
you have tried.
However, you might also wish to look at .NET's cryptography classes, as
encrypting data also (usually) compresses it implicitly. If this is an
option for you, then take a look at the classes in the
System.Security.Cryptography namespace.
--
Regards,
Mr. Jani Järvinen
C# MVP
Helsinki, Finland ja***@removethis.dystopia.fi http://www.saunalahti.fi/janij/
Take a look at #ziplib from http://www.icsharpcode.net/OpenSourc...b/Default.aspx
Brendan
"Wencheng Magiya" wrote: Hi all,
My WebService connects to a database server, client application connects to
the WebService. There is a backup method in WebService backups database and
sends compressed data back to the client app. The client app then generates
a zip file using the compressed data. I tried Xceed's Zip library, it can do
the job well, but its price is kind of expensive. Is there any other
alternative method can compress data in memory?
Best Regards,
Wencheng
Thanks Jani, I will try .NET 2.0!
"Jani J?vinen [MVP]" <ja***@removethis.dystopia.fi> wrote in message
news:ui**************@TK2MSFTNGP12.phx.gbl... Wencheng,
There is a backup method in WebService backups database and sends
compressed data back to the client app. The client app then generates a
zip file using the compressed data. Is there any other alternative method
can compress data in memory?
I'm not aware of any ready-made compression utilities in .NET 1.1, but if
you are targeting .NET 2.0, then you might wish too look at the new
System.IO.Compression namespace. This is an alternative to the zip library
you have tried.
However, you might also wish to look at .NET's cryptography classes, as
encrypting data also (usually) compresses it implicitly. If this is an
option for you, then take a look at the classes in the
System.Security.Cryptography namespace.
--
Regards,
Mr. Jani J?vinen
C# MVP
Helsinki, Finland
ja***@removethis.dystopia.fi
http://www.saunalahti.fi/janij/
Brendan, SharpZipLib is a good library, but I really need streaming
compression. Thanks anyway.
"Brendan Grant" <gr****@NOSPAMdahat.com> wrote in message
news:B1**********************************@microsof t.com... Take a look at #ziplib from
http://www.icsharpcode.net/OpenSourc...b/Default.aspx
Brendan
"Wencheng Magiya" wrote:
Hi all,
My WebService connects to a database server, client application connects
to
the WebService. There is a backup method in WebService backups database
and
sends compressed data back to the client app. The client app then
generates
a zip file using the compressed data. I tried Xceed's Zip library, it can
do
the job well, but its price is kind of expensive. Is there any other
alternative method can compress data in memory?
Best Regards,
Wencheng
Wencheng Magiya <ac*******@sneakemail.com> wrote: Brendan, SharpZipLib is a good library, but I really need streaming
compression. Thanks anyway.
You can do streaming compression with SharpZipLib. You can use
DeflaterOutputStream/InflaterInputStream, or
GZipInputStream/GZipOutputStream.
--
Jon Skeet - <sk***@pobox.com> http://www.pobox.com/~skeet
If replying to the group, please do not mail me too
Hello
It can be done using SharpZipLib (I did something similar with it).
Aleksandar
"Wencheng Magiya" <ac*******@sneakemail.com> wrote in message
news:O0**************@TK2MSFTNGP10.phx.gbl... Brendan, SharpZipLib is a good library, but I really need streaming
compression. Thanks anyway.
"Brendan Grant" <gr****@NOSPAMdahat.com> wrote in message
news:B1**********************************@microsof t.com... Take a look at #ziplib from
http://www.icsharpcode.net/OpenSourc...b/Default.aspx
Brendan
"Wencheng Magiya" wrote:
Hi all,
My WebService connects to a database server, client application connects
to
the WebService. There is a backup method in WebService backups database
and
sends compressed data back to the client app. The client app then
generates
a zip file using the compressed data. I tried Xceed's Zip library, it
can do
the job well, but its price is kind of expensive. Is there any other
alternative method can compress data in memory?
Best Regards,
Wencheng
I will give it a try. Thanks Jon and Aleksandar.
"Jon Skeet [C# MVP]" <sk***@pobox.com> wrote in message
news:MP************************@msnews.microsoft.c om... Wencheng Magiya <ac*******@sneakemail.com> wrote: Brendan, SharpZipLib is a good library, but I really need streaming
compression. Thanks anyway.
You can do streaming compression with SharpZipLib. You can use
DeflaterOutputStream/InflaterInputStream, or
GZipInputStream/GZipOutputStream.
--
Jon Skeet - <sk***@pobox.com>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics
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