WebBrowserPermission.Union Method (IPermission)
Creates a permission that is the union of the current permission and the specified permission.
Assembly: WindowsBase (in WindowsBase.dll)
A permission to combine with the current permission. It must be of the same type as the current permission.
Return ValueType: System.Security.IPermission
A new permission that represents the union of the current permission and the specified permission.
Members of this class are either not typically used in XAML, or cannot be used in XAML.
Available since 3.0