Normally, all day events and activities are rendered with a different style or in different positions within a WebSchedule view element. These distinctions may not always be discernable by end users visiting your site with a disability. To enable more users to distinguish an all day event compared to an activity, your application should use this replacement tag in the AppointmentFormatString to indicate an event as being all day.
The text description replacing this tag is taken from your resource assembly's localized string literals.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2