Gets or sets the field name to be used for the actual value. While attributes are a convenient way to name values, the XML structure may also contain tags like

<Person Age="27">John Doe</Person>

This property determines the field name for "John Doe", in this case, "Name" would be appropriate as value. The default value for this property is "value".

Please note that this property has to be set before you pass the provider as data source to List & Label.