This component is available in the history module. It is a container that holds the HistoryPointListItem components that you add to it. The default view of this component is the Live History Chart view. The property sheet view
is where you configure the HistoryPointList properties.
The HistoryPointList component properties include the following;
-
Max Samples
Defines the maximum number of samples to store for each history extension displayed.
-
Time Window
Defines the time range to display on the Time Axis while viewing the live chart. If the chart is "zoomed" you will be able to pan and view all the collected data defined by Max Samples.
-
Background
Specifies the background color of the chart. The default setting is "null".
-
Show Horizontal Grid Lines
Shows (true) or hides (false) horizontal grid lines on the chart.
-
Show Vertical Grid Lines
Shows (true) or hides (false) vertical grid lines on the chart.
If the Live History Chart view is invoked from a history extension, the following default property values are used to display
the view:
-
Max Samples value = 5000
-
Time Window value = 10 minutes
-
Start Time = 0 hours 0 minutes
-
Sample Rate = Auto
In addition to the HistoryPointList properties, the property sheet view displays all associated HistoryPointListItem components below the properties. If the view is invoked from the History Point List component the items in the list can be selected/unselected and the view will update as needed.
Refer to HistoryPointListItem and About the Live History Chart View for more information.