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Tree Tags

This topic describes tags that you can use to configure an explorer view that contains a tree applet and a list applet that allows the user to view tree details. This view style displays hierarchically structured information in an expandable tree control. It includes the following topics:

• Applet Tree List Tag
• For Each Indent Tag
• For Each Node Tag
• Indent Image Tag
• Node Tag

SWE does the following:

• Displays the tree control in a vertical frame on the left side of the applet.
• Displays detailed information for the item that the user chooses in the tree. It displays these details in a detail applet in a vertical frame on the right side of the applet.

These vertical frames allow the user to scroll the tree applet independently of the detail applet. This configuration allows the tree to grow in length and width.

SWE does the following to display a tree:

• Iterates each item of the tree.
• Displays each item top-down, depth-first.
• Displays one item at time.
• Indents each tree item so that the text displays at the correct indent level relative to the master, and to display the expand and collapse button, the text of the item, and the links.
• It uses one of the following to display the indentation, the expand button, the collapse button, and the item:
  • A series of GIF images.
  • Text if in text-only mode.
• Displays the list applet that is associated with the currently chosen tree node as part of the view.