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QuickStart - Tree View

     Properties - Tree View

The Tree View weblet provides an expandable collapsible tree.   It can be useful as a site navigation system or for visualizing complex hierarchical data.
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In can also be used in conjunction with an <iframe> or the Navigation Panel weblet to display detail information in response to the selection of tree items (this replaces the TreeView Target weblet used in the previous version).
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The Tree View is filled with data from a working list. Similar to the VL Tree View, the source data can be unlevelled, where each entry has an id and specifies the id of its parent, or levelled, where the tree builds itself from a sorted list based on key columns in the list.

When using unlevelled source data, the list can be configured to use Ajax to request child entries from the server when a branch is opened by the user.
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