Hi,

Something I'm thinking about before it is too late. I have a lots of applications in Delphi using the object model, started with MP 2002. There was not any problem upgrading mappoint.

However I came into the temptation to use C# and the ActiveX control of mappoint (2004). What will happens if mappoint 2006 comes out ? Will the compiled programs work with both versions ?

I'm a little afraid it will not and I hope I'm very wrong with this assumption. It is impossible to make separate project for different versions of mappoint because of maintenance.

How do you solve this ?

I think you should be okay. The object models for MP 2002 and 2004 are virtually the same. 2004 only added a couple of methods iirc.

I avoid those methods, which allows my programs to work with both if I don't explicitly give the version number. Try it!


Richard

Hi Richard,

Thanks for reply. But I did probably not phrase my question good. You are telling me that object model is compatible between versions, but does this means that using the ActiveX component is not ?

Because if it is not I have to review the applications in C# using the component and change it to the object model. Is that right ?

I think we have a terminology problem here!

I see the ActiveX component as a subset of the object model. When you use it, you also use a small number of objects which are only used with ActiveX (and not in an add-in such as MileCharter, or a "stand alone" such as GridImp). However, I'm using the term "object model" to refer to the full group of COM objects.

I think you should be able to just change or remove the version number. Try it!

Richard

Hi Richard,

Understood Thanks ..