expression Required. An expression that returns one of the objects in the Applies To list.
The Caption property is a string expression that can contain up to 2,048 characters. Captions for forms and reports that are too long to display in the title bar are truncated. For controls, you can set this property by using the property sheet. For fields, you can set this property by using the property sheet in table Design view or in the Query window (in the Field Properties property sheet). You can also set this property by using a macro or Visual Basic.
If you don't specify a caption for a table field, the field's FieldName property setting will be used as the caption of a label attached to a control or as the column heading in Datasheet view. If you don't specify the caption for a query field, the caption for the underlying table field will be used. If you don't set a caption for a form, button, or label, Microsoft Access will assign the object a unique name based on the object, such as "Form1". If you create a control by dragging a field from the field list and haven't specified a Caption property setting for the field, the field's FieldName property setting will be copied to the control's Name property box and will also appear in the label of the control created. Note The text of the Caption property for a label or command button control is the hyperlink...