So how would one create the .emdx model and entity mapping without first creating a data source in the Server Explorer? I found creating a Npgsql data source impossible due due to the lacking VS integration support (DDEX).

I’ve also tried to create a data source using the OLE DB provider, but it failed with this error message: “Multiple-step OLE DB operation generated errors. Check each OLE DB status value, if available. No work was done.” (Note that connection test was successful). Has anyone experienced and/or solved this problem? I don’t understand it because using the Postgre OLE DB provider directly from code seems to work fine.

Finally I only managed to create a Postgre data source using ODBC provider. But that’s an unnecessary thick layer and does not seem to work with entity framework either.

So my question is: am I just failing to create a postgre data source (and how to go about that) or is there a way to create the entity model and mapping without an actual data source in the Server Explorer?

Sorry if my questions sound lame, but I’m quite new to data programming in .Net and I was unable to resolve this using google

Thanks.

Comment #4 – This is correct due to the Npgsql’s lack of VS integration it wont be available as a selectable data provider within VS. Lets hope that the guys at pgfoundry are working hard on this one for the next major release.

cheers

I think you need to add Mono to the gacutil part too

Thanks for putting this online.

Cheers, Andrew.