C# Discussion Boards - CodeProject

First Prev Next

Re: how to create object for a visio document.

Your Display Name Here19-Jan-10 2:52

Your Display Name Here

19-Jan-10 2:52

Most of MSFT's objects are propriatary. Not that you can't figure out the protocol (in this case Visio protocol) but it's usually pretty complicated. Not to panic, what I've done in the past is attempt to save MSFT as a web page and decipher it that way. Looking at HTML is the "Common Thread" that we all easily understand.

Because Visio involves graphics you may have to dig in a bit deeper because yes, even graphics have protocols.

XML is another good way to "skip the internals" of a file protocol. XML is another Easy way to get the Visio engine to respond to simple commands via the markup.

So here's a start fo you take a look here and see if you can't find a mapping for the file format you want: Google Search for Visio File format

Passing Class objects from a web service to COM object

hem-insphire19-Jan-10 0:26

hem-insphire

19-Jan-10 0:26

Hi All, this is my first post. Hope I make sense! Smile | :)

I am maintaining an application that communicates in the following way

VB6 (COM.class1) -> .NET COM (COM.class1 to WS.class1) -> .NET Web Service (WS.Class1)

What the above means is that a .NET COM component has a class that is exposed and populated in VB6. When this object is passed to the COM component, it's contents are copied over to a similar class which is defined in the .NET Web Service class, and then this object is passed through to the .NET web service.

I can see that serialisation should have been possible to just have one class that can be passed without any copying in the COM object, but that's a minor issue at the moment!

I want to be able to find the best way to pass through a field name and value from VB6 to the web service using the COM object to communicate? I want to be able to distribute new versions of the web service (with additional fields for instance) without the need to release the COM object and/or the VB6 application to ensure backward compatibity.

I hope I am making sense, if not, i'll try to clear up anyone where they are lost! Smile | :)

My first idea was to pass through a 2 dimensional array, but I don't think that's the neatest solution!

Re: Passing Class objects from a web service to COM object

KarstenK19-Jan-10 1:10

KarstenK

19-Jan-10 1:10

using a plain method enables you often to focus on the whole software instead of fighting with technology.

create an interface like

int Set( string name, string value );//Return code
string Get( string name );//the result

If you think have to write a lot of code, think also that you avoid a lot of debugging and headache Cool | :cool:

Press F1 for help or google it.
Greetings from Germany

Re: Passing Class objects from a web service to COM object

hem-insphire19-Jan-10 1:18

hem-insphire

19-Jan-10 1:18

oops, just realised I said I want to pass through a field name and value, but I actually meant passing through a class of field names and values, sorry! Unsure | :~

The class I have has things like Name, dob, surname, etc and these will be only simple types (like int, string, etc).

I am thinking at the moment to pass through a two-dimensional array and have a type-library that is used to interpret the fields on the web service and on vb6 when assigning values in the array to pass through... Hmmm | :|

Re: Passing Class objects from a web service to COM object

KarstenK19-Jan-10 2:46

KarstenK

19-Jan-10 2:46

my simple way will free you of a lot of pain, and you can put up your mind in other aspects of your project.

An array will you you pain!!! Indexe changes, sizes and name changes. Beware of it Dead | X|

Give me some points against my proposal (and remember them for the project end) Roll eyes | :rolleyes:

Press F1 for help or google it.
Greetings from Germany

MCTS 7-536 Dumps

Sunil G18-Jan-10 23:38

Sunil G

18-Jan-10 23:38

Hi all,
I am preparing for MCTS certifiaction.
I want 70-536 dumps.
Anybody has dumps then send me at gohel_sunil@hotmail.com,gohelsunil@rediffmail.com

Thanking You,
Sunil G.

Message Closed

18-Jan-10 23:53

stancrm

18-Jan-10 23:53

Message Closed

modified 23-Nov-14 6:53am.