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# NpgsqlConnection Members

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) |
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) |
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) |
Dispose (inherited from Component) |
Equals (inherited from Object) |
GetHashCode (inherited from Object) |
GetLifetimeService (inherited from MarshalByRefObject) |
GetSchema | Overloaded. Missing <summary> documentation for M:Npgsql.NpgsqlConnection.GetSchema
GetType (inherited from Object) |
InitializeLifetimeService (inherited from MarshalByRefObject) |
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 | Missing <summary> documentation for E:System.ComponentModel.Component.Disposed
Notice | Occurs on NoticeResponses from the PostgreSQL backend.
Notification | Occurs on NotificationResponses from the PostgreSQL backend.
PrivateKeySelectionCallback | Mono.Security.Protocol.Tls.PrivateKeySelectionCallback delegate.

#### Protected Instance Properties

DesignMode (inherited from Component) |
Events (inherited from Component) |

#### See Also

NpgsqlConnection Class | Npgsql Namespace