Developing Apama Applications > Building Dashboards > Reusing Dashboard Components > Working with multiple display panels > Using tree controls in panel displays > Configuring tree control icons
Configuring tree control icons
You can optionally configure tree control icons, using images of your choice, to visually indicate the type of elements in the tree, for example, Production or Sales, whether the element is in a critical state, and to also propagate the status of priority elements to the top of the tree.
The use of one or both of the following icons is optional. Each node in the tree control can display these two configurable icons:
*Type icon — Use the type icon to assign static images to nodes that indicate either the type of element it contains, or its level in the tree. By default, a folder image is used for all non-leaf nodes, and a document image is used for all leaf nodes.
For example, if you have groups of elements based on geographic location, you could assign an icon for the country, state and city (for example, US, California, San Francisco). Or, if you have groups of elements based on their function, you could assign an icon for each function (Purchases, Operations, Sales, and so forth). You can also assign images for each depth in the tree for a visual indication of where you are while navigating within the tree.
*Status icon — Use the status icon to assign images that are used when an element in the tree has a specified value. You can also configure the status in order of priority so that the most critical status is propagated up the tree first. By default, there is no status icon.
If a node has a type icon and a status icon, the type icon always appears to the left of the status icon.
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