Npgsql API Documentation |

# NpgsqlConnection Members

[This is preliminary documentation and subject to change.]

NpgsqlConnection overview

#### Public Instance Constructors

NpgsqlConnection | Overloaded. Initializes a new instance of the NpgsqlConnection class.

#### Public Instance Properties

BackendProtocolVersion | Protocol version in use. This can only be called when there is an active connection.
ConnectionString | Gets or sets the string used to connect to a PostgreSQL database. Valid values are: Server: Address/Name of Postgresql Server; Port: Port to connect to; Protocol: Protocol version to use, instead of automatic; Integer 2 or 3; Database: Database name. Defaults to user name if not specified; User: User name; Password: Password for clear text authentication; SSL: True or False. Controls whether to attempt a secure connection. Default = False; Pooling: True or False. Controls whether connection pooling is used. Default = True; MinPoolSize: Min size of connection pool; MaxPoolSize: Max size of connection pool; Encoding: Encoding to be used; Timeout: Time to wait for connection open in seconds.
ConnectionTimeout | Gets the time to wait while trying to establish a connection before terminating the attempt and generating an error.
Container (inherited from Component) | Gets the IContainer that contains the Component.
Database | Gets the name of the current database or the database to be used after a connection is opened.
Host | Backend server host name.
Port | Backend server port.
ServerVersion | Version of the PostgreSQL backend. This can only be called when there is an active connection.
Site (inherited from Component) | Gets or sets the ISite of the Component.
SSL | If true, the connection will attempt to use SSL.
State | Gets the current state of the connection.

#### Public Instance Methods

BeginTransaction | Overloaded. Begins a database transaction.
ChangeDatabase | This method changes the current database by disconnecting from the actual database and connecting to the specified.
Clone | Create a new connection based on this one.
Close | Releases the connection to the database. If the connection is pooled, it will be made available for re-use. If it is non-pooled, the actual connection will be shutdown.
CreateCommand | Creates and returns a NpgsqlCommand object associated with the NpgsqlConnection.
CreateObjRef (inherited from MarshalByRefObject) | Creates an object that contains all the relevant information required to generate a proxy used to communicate with a remote object.
Dispose (inherited from Component) | Releases all resources used by the Component.
Equals (inherited from Object) | Determines whether the specified Object is equal to the current Object.
GetHashCode (inherited from Object) | Serves as a hash function for a particular type, suitable for use in hashing algorithms and data structures like a hash table.
GetLifetimeService (inherited from MarshalByRefObject) | Retrieves the current lifetime service object that controls the lifetime policy for this instance.
GetType (inherited from Object) | Gets the Type of the current instance.
InitializeLifetimeService (inherited from MarshalByRefObject) | Obtains a lifetime service object to control the lifetime policy for this instance.
Open | Opens a database connection with the property settings specified by the ConnectionString.
ToString (inherited from Component) |

#### Public Instance Events

CertificateSelectionCallback | Mono.Security.Protocol.Tls.CertificateSelectionCallback delegate.
CertificateValidationCallback | Mono.Security.Protocol.Tls.CertificateValidationCallback delegate.
Disposed (inherited from Component) | Adds an event handler to listen to the Disposed event on the component.
Notice | Occurs on NoticeResponses from the PostgreSQL backend.
Notification | Occurs on NotificationResponses from the PostgreSQL backend.
PrivateKeySelectionCallback | Mono.Security.Protocol.Tls.PrivateKeySelectionCallback delegate.

#### See Also

NpgsqlConnection Class | Npgsql Namespace