Use an Alarm Tree Viewer control at run time

Use the Alarm Tree Viewer control to navigate the hierarchy of alarm providers and alarm groups.

The Alarm Tree Viewer control can show multiple nodes and alarm providers.

• Nodes are represented by a computer icon.

• Alarm providers are represented by a speaker icon.

• Alarm groups are represented by a bell icon.

With one or more alarm groups selected, you can generate queries for alarms that can be used in the Alarm Tree Viewer control and the Alarm DB View controls. To select multiple alarm groups, hold down the shift key while selecting a group. To un-select all groups, select an empty area.

One or more of the following commands appears on the run-time shortcut menu, depending on how the control is configured:

• Refresh – Forces a manual update of the alarms.

• Freeze – Stops the alarms from updating.

• Query Favorites – Opens the Alarm Query dialog box where you can select an alarm query from a list of previously defined alarm queries.

• Add to Favorites – Opens the Add Query dialog box with a query string entered based on the selected Groups (if any).

• Sort – Opens the Sort dialog box with options to alphabetically sort alarm groups in ascending or descending order.

• Statistics – Opens the Alarm Statistics dialog box to show the percentage of retrieved alarm providers.