[mapguide-users] Interaction between multiple Viewer Instances

[Ralf Comouth]

Hi Kenneth, thanks for your quick response !

If I understand you right it is generaly possible to interact between two
different sessions.
I am not sure if this information is a good or bad thing, because this means
that I have no
excusses if I fail :-)


>>  you have to lookup the name of the layer, based on the guid

I think this would be the difficult part, but I'm getting an idea from where
I have to start.

Thanks again for your answer, I will do some "try and error" - coding
now.....

Regards

Ralf



Kenneth Skovhede, GEOGRAF A/S wrote:
> 
> 
> There is a slight obstacle in interacting between two sessions.
> 
> When MapGuide starts a new sessions, it converts the map from xml format 
> to binary (from a MapDefinition to a RuntimeMap).
> Part of this process is assigning each layer a globally unique id (GUID).
> A selection is basically an xml like this:
> <selection>
>     <layer id="..guid..">
>        <schema id="..classname..">
>              <ID>...primary key in base 64 encoded format...</ID>
>        </schema>
>     </layer>
> </selection>
> 
> The problem with having to sessions, is that the guid for the layers 
> will now be different, but everything else is the same.
> So, if you want to transfer the selection, you have to lookup the name 
> of the layer, based on the guid, and then do the opposite on the other
> end.
> 
> Does this explain your question?
> 
> Regards, Kenneth Skovhede, GEOGRAF A/S
> 
> 
> 
> 

-- 
View this message in context: http://www.nabble.com/Interaction-between-multiple-Viewer-Instances-tp17641488p17653055.html
Sent from the MapGuide Users mailing list archive at Nabble.com.