What do you mean by integrate? Are you wanting to build a seperate C# system, attached to the OpenERP system?

The database is a PostgreSQL database, on C# I am not sure what you would use, be it a DSN or whatever. I would check out the PostgreSQL website and I am sure there will be a C# driver.

The language used by OpenERP is Python, if you want to extend the existing system I'd start looking at the development docs online.

But if you can give us an indication of what you mean or plan to do, we may be able to help further.

You have to write a custom module that will open the other database and allow communication.

Without knowing more details a good explanation cannot be given, but it should be trivial to get the information into openERP from your application.. Ensuring the two databases remained synchronized is not trivial.

Hello.

You'll have to develop C# code and Python code to connect both of them. It doesn't matter what you want to do joining both systems there is no native functionality that connects C# with OpenERP