TDBListBox.UpdateData procedure

Declaration

procedure UpdateData(Sender: TObject); override

Arguments

Description

UpdateData is an overridden method in TDBLIstBox. It implements the abstract virtual method defined in the ancestor, and provides support for updating the linked dataset when the value for the control has been changed.

UpdateData stores the value from Items located at the position in ItemIndex to the field for the linked dataset. No actions are performed in the method when ItemIndex is -1 (no item is selected in the control).

UpdateData is used as the OnUpdateData event handler in the internal TFieldDataLink instance for the control.

See also

• Items
• UpdateData
• Field
• OnUpdateData
• TCustomListBox.ItemIndex