Gets the name of the field in the data provider object that determines what to display as the icon.
By default, the list class does not try to display icons with the text in the rows. However, by specifying an icon field, you can specify a graphic that is created and displayed as an icon in the row. This property is ignored by DataGrid.
The default value is null (Nothing in Visual Basic).
protected String iconField { get; }
'Declaration
Protected Read Property iconField As String