A string ([XMLSCHEMA2/2] section 3.2.1) that specifies the source of the value that appears in the control. MUST be either an expression or the name of a field in the record source of the form. If the value is an expression, it MUST begin with the character ‘=’. A null string specifies that the control’s value is not stored elsewhere in the database application.

The default value is a null string.

Applies to: CT_AccAttachment, CT_AccCheckBox, CT_AccComboBox, CT_AccDSAttachment, CT_AccDSCheckBox, CT_AccDSComboBox, CT_AccDSTextBox, CT_AccListBox, CT_AccWebBrowser