Gets the name of the field in the data provider items to display as the data tip.
By default, the list looks for a property named label on each item and displays it. However, if the data objects do not contain a label property, you can set the dataTipField property to use a different property in the data object.
The default value is null (Nothing in Visual Basic).
protected String dataTipField { get; }
'Declaration
Protected Read Property dataTipField As String