Selects all the items in a ListBox.
Public Sub SelectAll
The SelectionMode property is set to Single.
The following example shows how to use the SelectAll method to select and highlight all the items in a list box.
Private Sub SelectAll(ByVal sender As Object, ByVal e As RoutedEventArgs)
Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.