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vb.net -> Converting an Octet String into Byte?

Posted on 2004-04-11
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Last Modified: 2007-12-19
Hello everyone,

First a little background: I'm doing an SMPP client on vb.net, trying to communicate with my telco's SMSC. I've got the receiving part alright, but sending has got me stumped.

I have this hex value in String: "534D5050" ("SMPP"). I am currently writing it to my socket stream like this:


Dim w As New IO.StreamWriter(smppClient.GetStream)
w.Write("534D5050")
w.Flush()


Problem is, I need to send it as an octet, e.g. 53 is 00110101 in binary.

Hence, the actual data I have to send is, 00110101 1001101 1010000 1010000, but in *bytes*, not binary.

My question is, how do I go about converting hex strings into bytes?

edit: Just to clarify, using the example string "SMPP", I should send out 4 bytes instead of 8, like it is doing right now from my code above.


Thank you, and good day.
/Kev
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Question by:orang_minyak
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Accepted Solution

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tppradeep18 earned 500 total points
ID: 10804312
hi orang_minyak

There is a nice code available at the following URL which converts HEx to byte.

http://www.codeproject.com/csharp/hexencoding.asp

hope this helps

cheers

-----
pradeep
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Author Comment

by:orang_minyak
ID: 10804676
Thank you. I'm looking into it now. Converting everthing into vb.net ;)
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Author Comment

by:orang_minyak
ID: 10815031
Thanks! That helped alot.
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