System.Data.ProviderBase.AbstractDBConnection.Open C# (CSharp) Méthode

		public override void Open()
		{
			if (_connectionString == null || _connectionString.Length == 0) {
				throw ExceptionHelper.ConnectionStringNotInitialized();
			}

			IsConnecting = true;
			try {			
				if (JdbcConnection != null && !JdbcConnection.isClosed()) {
					throw ExceptionHelper.ConnectionAlreadyOpen(_internalState);
				}

				JdbcConnection = ConnectionProvider.GetConnection (ConnectionStringBuilder);

				IsOpened = true;

				OnStateChange (new StateChangeEventArgs (ConnectionState.Closed, ConnectionState.Open));
			}
			catch (SQLWarning warning) {
				OnSqlWarning(warning);
			}
			catch (SQLException exp) {
				OnSqlException(exp);
			}
			finally {
				IsConnecting = false;
			}
		}