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Reference for unit 'db' (#fcl)

TDataSet.BeforeScroll

Event triggered before the cursor changes position.

Declaration

Source position: db.pas line 1705

public property TDataSet.BeforeScroll : TDataSetNotifyEvent read FBeforeScroll write FBeforeScroll;

BeforeScroll is triggered before the cursor changes position. This can happen with one of the navigation methods: TDataset.Next, TDataset.Prior, TDataset.First, TDataset.Last, but also with two of the editing operations:TDataset.Insert and TDataset.Delete. Raising an exception in this event handler aborts the operation in progress.

TDataset.AfterScroll		Event triggered after the cursor has changed position.
TDataset.Next		Go to the next record in the dataset.
TDataset.Prior		Go to the previous record
TDataset.First		Position the dataset on the first record.
TDataset.Last		Navigate forward to the last record
TDataset.Insert		Insert a new record at the current position.
TDataset.Delete		Delete the current record.