Implements data-aware operations for working with a PostgreSQL database.
NuGet Package: DevExpress.Xpo
The PostgreSqlConnectionProvider class implements data-aware operations for working with PostgreSQL databases. In most cases, there is no need to create connection providers explicitly, as they are created automatically by a Session object based upon a connection string.
To connect to a specific PostgreSQL database, you can generate a connection string via the static PostgreSqlConnectionProvider.GetConnectionString method. This connection string will contain information on the provider (PostgreSqlConnectionProvider) that will be used to work with the database. Supply this connection string to a Session object (for instance, via the Session.ConnectionString or XpoDefault.ConnectionString property). When a connection to a database is to be established, the session will create a corresponding connection provider based upon the connection string and then perform all data-aware operations using this connection provider.
There are also cases when you need to create a connection provider explicitly via its constructor, for instance:
- When sharing a single IDataLayer object between multiple sessions, a connection provider should be passed to the data layer’s constructor. See the IDataLayer topic for additional information.
- When manually maintaining a connection pool.