RAD Studio VCL Reference
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TTreeNode.HasChildren Property
TTreeNode Class | TTreeNode Members | ComCtrls Namespace | Description | See Also
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Indicates whether a node has any children.

Pascal
property HasChildren: Boolean;
C++
__property Boolean HasChildren;
Description

HasChildren is true if the node has subnodes, or false if the node has no subnodes. If ShowButtons of the tree view is true, and HasChildren is true, a plus (+) button will appear to the left of the node when it is collapsed, and a minus (-) button will appear when the node is expanded.

Note: If a node has no children, setting HasChildren to true will show a (+) plus button, but will not add any child nodes and the node cannot be expanded.
 

See Also
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