Use this constant to either get or set the value of a database parameter which specifies the rollback status when a lock timeout occurs. If the parameter is TRUE, the entire transaction rolls back when a lock timeout occurs. If it is FALSE, only the current command rolls back on a lock timeout. Use this constant with the SqlGetParameter, and SqlSetParameter. The rollbackontimeout feature can only be used against some databases. Please see the appropriate database manuals for more information. Value = 6

public const int DBP_ROLLBACKONTIMEOUT