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Gravitybox Schedule Primer
Page 108 
1998-2004 Gravitybox Software LLC
between the two because an activity has a clock icon on its left and right side, while an
event does not. The AllowActivities property must be set to modify appointments to
have this condition and also for the display of such appointments. Being even more
restrictive in its presentation than an event, an activity will only display if the schedule’s
Viewmode is set to day on top and time on the left.
Effects
There is a way to display the appearance and disappearance of appointments in a fancy
fashion. The AllowEffects property may be used to make appointment shrink and
expand. When this property is true and an appointment is added, it will expand from a
point to the appointment’s specified size. This gives the user the illusion of an
appointment being created. Conversely, when the user removes an appointment, it will
seem to shrink down into nothing. It will collapse back down into a point and disappear.
This is enhanced functionality and may not be appropriate for a your application. If the
schedule is running on a slower computer, the repaint may not look very nice. The
graphics of the GbSchedule are rather intensive sometimes and not all monitors can
handle the extra graphic calls.
BlackOuts
Occasionally an appointment will need to be displayed so
that the user should not be able to edit, move, or view. Each
ScheduleItem has a BlackOut property. When set to true,
this appointment is nothing more than a placeholder. It will be displayed on the schedule
as a block of color defined the BlackOutColor property. This color is by default black,
but it may be set to any color desired. This functionality allows for the definition of an
area on the schedule that is an appointment but the user has no access to modify or
view.
Find
The user may also perform a find of appointments if necessary. You may construct your
own find appointments dialog window is you wish. However there is one built in. When
the AllowFind property is set to true, the user press the <CTRL>-F to display the “Find”
window. This window allows you to search for text inside of the Category, Subject,
DisplayText, and Notes fields. You may also constrict your search criteria based on date
range, start time, or end time. This allows for quite complex search criteria to be created
if need be.
Quick Tip
Appointments may be blacked-out to
reserve space but without revealing
any appointment information.
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