C# or eVC++ ?

[Brian Abbott]

Hi

I'm new to PPC development. I have a app that I wish to develop for PPC2002
and later devices. I started off thinking that C# was the way to go, but
doing some research has made me have some doubts. The areas of particular
concern are:

- The app will connect to a web service and pass back a data set that
includes a digitised signature, say 3k in size. AIUI, .Net CF SOAP doesn't
support attachments so I need to Base64 encode the sig and include that in
the XML payload. BUT I have read that .Net CF is very slow in Base64
encoding, to the point of being perhaps unusable?

- In the future I might want to have the PDA act as a SOAP Web Server. I
know .Net CF won't do this ATM - will it in the next version?

Any comments on the above 2 points would be appreciated.

Cheers

Brian Abbott

 

[Jon Skeet [C# MVP]]

I'm new to PPC development. I have a app that I wish to develop for PPC2002
and later devices. I started off thinking that C# was the way to go, but
doing some research has made me have some doubts. The areas of particular
concern are:

- The app will connect to a web service and pass back a data set that
includes a digitised signature, say 3k in size. AIUI, .Net CF SOAP doesn't
support attachments so I need to Base64 encode the sig and include that in
the XML payload. BUT I have read that .Net CF is very slow in Base64
encoding, to the point of being perhaps unusable?

I haven't spotted any problems with its Base64 encoding implementation,
but if there were any, it wouldn't be hard to write your own base 64
routines.

 

[Chris Tacke, eMVP]

I don't think base-64 will be a problem.

I can't imagine that we'll see web service hosting any time soon on the PPC.
You can always write one or find a 3rd party one, but it's not there now for
either environment, and I doubt they will be in v. next.

-Chris

 

[Razvan Dragomirescu]

You might want to take a look at this:

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnnetcomp/html/NETCFMA.asp

It's a WebServer written in C# for the .NET Compact Framework and it does
have a SOAP module (they have a sample Web Service running on it). The code
is pretty clean, although it still has some quirks.

Razvan

 

[Brian Abbott]

Thanks guys, that's reassuring about base64.

 

[Brian Abbott]

Interesting link, thanks very much.

You might want to take a look at this:

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnnetcomp/html/NETCFMA.asp

It's a WebServer written in C# for the .NET Compact Framework and it does
have a SOAP module (they have a sample Web Service running on it). The code
is pretty clean, although it still has some quirks.

Razvan

--
Razvan Dragomirescu
Chief Technology Officer
SIMEDA GmbH
www.simeda.com

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