[Overview][Constants][Types][Classes][Procedures and functions][Variables][Index] | Reference for unit 'DB' (#fcl)

# TDataSet.OnDeleteError

Event triggered when a delete operation fails.

## Declaration

Source position: db.pas line 1765

`public property TDataSet.OnDeleteError : TDataSetErrorEvent read FOnDeleteError write FOnDeleteError;`

## Description

OnDeleteError is triggered when the TDataset.Delete method fails to delete the record in the underlying database. The event handler can be used to indicate what the response to the failed delete should be. To this end, it gets the exception object passed to it (parameter E), and it can examine this object to return an appropriate action in the DataAction parameter. The following responses are supported:

daFail
  The operation should fail (an exception will be raised)
daAbort
  The operation should be aborted (edits are undone, and an EAbort exception is raised)
daRetry
  Retry the operation.

For more information, see also the description of the TDatasetErrorEvent event handler type.

## See also

TDatasetErrorEvent |  | Error handling callback
TDataset.Delete |  | Delete the current record.
TDataset.OnEditError |  | Event triggered when an edit operation fails.
TDataset.OnPostError |  | Event triggered when a post operation fails.

Documentation generated on: May 14 2021