DbServer.LockSelection Method |  |
Lock all the records in the currently active selection.
Namespace: VO
Assembly: VORDDClasses (in VORDDClasses.dll) Version: 2.21
SyntaxRequest Example
View Source
TRUE if successful; otherwise, FALSE (although some records still might have been processed).
Return Value
Type: UsualTRUE if successful; otherwise, FALSE (although some records still might have been processed).
Remarks
If a selection is not active, sends a NotifyIntentToMove message before the operation and functions the same as FLock().
Examples
A selective relation is set up between customer and order servers. The application operates under "cursor stability" mode, which means that the currently active record remains locked and hence protected from outside influence. When a customer record is locked, all the orders that correspond to that customer are also locked:
X#
1oDBCust := DBServer{"customer"} 2oDBOrder := DBServer{"order"} 3oDBOrder:SetIndex{("ORDCSTNO") 4oDBCust:SetSelectiveRelation(oDBOrder,#CustNo) 5... 6METHOD Skip() CLASS CustomerWindow 7oDBCust:Skip() // Reposition order server 8oDBCust:RLock() // Lock customer record 9oDBOrder:LockSelection() // Lock order records
See Also