String to Stream

[Hayato Iriumi]

I'm looking for a way to convert String to Stream. I don't want to have to
write the string out to a file to get the stream. Does anyone know how?

TIA

[Jay B. Harlow [MVP - Outlook]]

Re: String to Stream

Hayato,
You cannot convert the String to a Stream per se.

However! You can use the StringReader & StringWriter to read from & write to
a String. If your IO routines expect TextReader & TextWriter you can then
use Strings & Streams interchangeable . As TextReader is the base class for
both StreamReader & StringReader. Same with TextWriter and StreamWriter &
StringWriter.

With the aid of the System.Text.Enc oding class you could convert the String
into an Array of Bytes, which you can pass to the constructor of
MemoryStream.

Of course you are free to inherit from Stream to create a StringStream
class.

The StringReader & StringWriter is my first choice, then I use the others as
appropriate.

Hope this helps
Jay

"Hayato Iriumi" <hiriumi@hotmai l.com> wrote in message
news:efSHFHtjDH A.744@tk2msftng p13.phx.gbl...[color=blue]
> I'm looking for a way to convert String to Stream. I don't want to have to
> write the string out to a file to get the stream. Does anyone know how?
>
> TIA
>
>[/color]

[Fergus Cooney]

Re: String to Stream

Konichiwa Hayato,

Have you seen the MemoryStream? It works with byte arrays so you will need
to convert your string - which you can do with an Encoding.

[Untested]
Dim aBytes (Encoding.XXX.G etMaxByteCount) As Byte _
= Encoding.XXX.Ge tBytes (sString)
Dim strmMem As New MemoryStream (aBytes)

Where XXX is Unicode, or Ascii or whatever your string is.

If I may ask, what do you want to do with this Streamed string?

Regards,
Fergus.

[Hayato Iriumi]

Re: String to Stream

Thank you very much! Memory stream works.

"Jay B. Harlow [MVP - Outlook]" <Jay_Harlow@ema il.msn.com> wrote in message
news:#JCu8QtjDH A.1808@TK2MSFTN GP09.phx.gbl...[color=blue]
> Hayato,
> You cannot convert the String to a Stream per se.
>
> However! You can use the StringReader & StringWriter to read from & write[/color]
to[color=blue]
> a String. If your IO routines expect TextReader & TextWriter you can then
> use Strings & Streams interchangeable . As TextReader is the base class for
> both StreamReader & StringReader. Same with TextWriter and StreamWriter &
> StringWriter.
>
> With the aid of the System.Text.Enc oding class you could convert the[/color]
String[color=blue]
> into an Array of Bytes, which you can pass to the constructor of
> MemoryStream.
>
> Of course you are free to inherit from Stream to create a StringStream
> class.
>
> The StringReader & StringWriter is my first choice, then I use the others[/color]
as[color=blue]
> appropriate.
>
> Hope this helps
> Jay
>
> "Hayato Iriumi" <hiriumi@hotmai l.com> wrote in message
> news:efSHFHtjDH A.744@tk2msftng p13.phx.gbl...[color=green]
> > I'm looking for a way to convert String to Stream. I don't want to have[/color][/color]
to[color=blue][color=green]
> > write the string out to a file to get the stream. Does anyone know how?
> >
> > TIA
> >
> >[/color]
>
>[/color]

[Hayato Iriumi]

Re: String to Stream

Konnichiwa to you too. ;)

I have a Windows Service that listens a certain port. When ASP .NET
application sends a message to the Windows Service, it starts to do batch
processing... Well, the reason I wanted to use MemoryStream was that I
wanted to encrypt the message and then send the message out to Windows
Service. I've been trying to do this, but I guess I took a wrong route... My
plan was...

(1) Encrypt the string and keep the encrypted string in memory.
(2) Create byte array out of the encrypted string.
(3) Write it into NetworkStream
(4) Listener receives it as byte array
(5) Construct encrypted string
(6) Decrypt it.

I haven't successfully been able to do this... Any suggestion?

"Fergus Cooney" <filter-1@tesco.net> wrote in message
news:#XpP2VtjDH A.1084@tk2msftn gp13.phx.gbl...[color=blue]
> Konichiwa Hayato,
>
> Have you seen the MemoryStream? It works with byte arrays so you will[/color]
need[color=blue]
> to convert your string - which you can do with an Encoding.
>
> [Untested]
> Dim aBytes (Encoding.XXX.G etMaxByteCount) As Byte _
> = Encoding.XXX.Ge tBytes (sString)
> Dim strmMem As New MemoryStream (aBytes)
>
> Where XXX is Unicode, or Ascii or whatever your string is.
>
> If I may ask, what do you want to do with this Streamed string?
>
> Regards,
> Fergus.
>
>
>[/color]

[Herfried K. Wagner [MVP]]

Re: String to Stream

* "Hayato Iriumi" <hiriumi@hotmai l.com> scripsit:[color=blue]
> I'm looking for a way to convert String to Stream. I don't want to have to
> write the string out to a file to get the stream. Does anyone know how?[/color]

Have a look at the 'System.IO.Memo ryStream' class. You can write the
string using a 'StreamWriter'.

--
Herfried K. Wagner
MVP · VB Classic, VB.NET
<http://www.mvps.org/dotnet>

[Fergus Cooney]

Re: String to Stream

Hi Hayato,

It sounds like a reasonable plan. What's not working in it?

Regards,
Fergus