dotConnect for PostgreSQL Documentation
Devart.Data.PostgreSql Namespace / PgSqlConnection Class / Open Method
Example

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    Open Method (PgSqlConnection)
    In This Topic
    Opens a PostgreSQL connection with the property settings specified by the ConnectionString.
    Syntax
    'Declaration
     
    Public Overrides Sub Open() 
    public override void Open()
    Remarks
    The PgSqlConnection draws an open connection from the connection pool if one is available. Otherwise, it establishes a new connection to the data source.

    Note: If the PgSqlConnection goes out of scope, the connection it represents does not close automatically. Therefore, you must explicitly close the connection by calling Close.

    Opening an open connection does nothing.

    Example
    The following example creates a PgSqlConnection, opens it, displays some of its properties, and then closes the connection.
    public void CreatePgSqlConnection(string myConnString)
    {
      PgSqlConnection pgConnection = new PgSqlConnection(myConnString);
      pgConnection.Open();
      MessageBox.Show("ServerVersion: " + pgConnection.ServerVersion
        + "\nState: " + pgConnection.State.ToString());
      pgConnection.Close();
    }
    Public Sub CreatePgSqlConnection(myConnString As String)
      Dim pgConnection As New PgSqlConnection(myConnString)
      pgConnection.Open()
      MessageBox.Show("ServerVersion: " + pgConnection.ServerVersion _
        + ControlChars.Cr + "State: " + pgConnection.State.ToString())
      pgConnection.Close()
    End Sub
    Requirements

    Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

    See Also