Firebird ADO.NET Provider SDK Documentation - v1.7

FbConnection.GetPooledConnectionCount Method 

Gets the number of active connections in the connection pool that owns the spcified connection.

[Visual Basic]
Public Shared Function GetPooledConnectionCount( _
   ByVal connection As FbConnection _
) As Integer
[C#]
public static int GetPooledConnectionCount(
   FbConnection connection
);

See Also

FbConnection Class | FirebirdSql.Data.Firebird Namespace