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Editorial Team
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Asked: 2026-05-12T07:09:12+00:00

Could anyone explain how HierarchicalDataTemplate works What Controls supports HierarchicalDataTemplate? What does a control

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Could anyone explain how HierarchicalDataTemplate works

  • What Controls supports HierarchicalDataTemplate?
  • What does a control need to support HierarchicalDataTemplate?

UPDATE

  • What causes the TreeView to render
    the parent and child nodes when the
    same HierarchicalDataTemplate in a
    HeaderedItemsControl only causes the
    parent to be rendered?
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1 Answer

  1. Editorial Team

    Such control needs to be of type HeaderedItemsControl or derived from it. The current framework controls that do are MenuItem, ToolBar and TreeViewItem.

    The HeaderedItemsControl overrides the PrepareContainerForItemOverride method and somewhere along that call path checks for HierarchicalDataTemplate.

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