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LayoutChanged- called if layout is changed: tests validity of field then calls OnLayoutChange event handler.
Source position: dbctrls.pp line 71
protected procedure TFieldDataLink.LayoutChanged; override; |
LayoutChanged is an overridden procedure called when the field binding in the linked dataset for a data-aware Control has been changed. LayoutChanged calls the ValidateField method to ensure that the Field is valid / up-to-date, or set to Nil when the FieldName does not exist in the linked dataset. If the Field is assigned (not Nil), the EditingChanged and RecordChanged methods are called.
| Remark: | LayoutChanged does not call the inherited method. |
LayoutChanged is used primarily in the implementation of methods in TCustomDBGrid and descendent classes.
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The Control to which this datalink is attached. |
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The Field to which the datalink is attached. |
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FieldName - the name of the attached field, stored as a string. |
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EditingChanged - method for processing changes in the Editing property. |
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RecordChanged - triggered if the contents of the current record change; calls Reset. |
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TCustomDBGrid is the base class for TDBGrid. |
| Version 4.0 | Generated 2025-05-03 | Home |