AdoServer:Delete()

<< Click to Display Table of Contents >>

Navigation:  Dataservers > AdoServer Class >

AdoServer:Delete()

Previous pageReturn to chapter overviewNext page

Purpose

Delete the current record

 

Prototype

METHOD Delete ( )   CLASS AdoServer

 

 

Return

LOGIC        TRUE if successful; otherwise, FALSE

 

Description

Delete() sends a NotifyIntentToMove message before the operation, and a NotifyDelete upon completion.

 

In contrast to the Dbserver:Delete method(), the deleted record can not be recovered.

 

Note

The behavior of the AdoServer class after the delete depends on the fact if there are clients attached to the server and on the current setting of SetDeleted():

-        If SetDeleted() = TRUE and there are no clients the server automatically positions it self on the next valid record. If the last record was deleted the server moves to thenew last record

-        If setDeleted() = FALSE or there are clients attached to the server, the server does not reposition itself. This is done because DataWindow and Databrowser clients will automatically move the server to a new record. If there are no clients attached the server will stay on the deleted line and will return empty values when fields are accessed and will return a record number of -1.

 

Notifications

When the server was in AppendMode, this mode is cancelled and sends a NOTIFYRECORDCHANGE

In all other cases the Delete() method sends a NOTIFYFILECHANGE when completed. This is done because deleting records will change the number of records in the resultset and will also change the record numbers in the resultset.

When the Delete fails the server sends a NOTIFYRECORDCHANGE.

 

 

Example(s)

SetDeleted(FALSE)

oServer:GoTop()

? oServer:RECNO        // 1

oServer:Delete()

? oServer:RECNO        // -1

SetDeleted(TRUE)

oServer:GoTop()

? oServer:RECNO        // 1

oServer:Delete()

? oServer:RECNO        // 1        Because ADO        

 // automatically 'renumbers' the records after a delete

 

 

See Also

AdoServer, AdoRecordSet:Delete(), AdoServer:Append