Language Reference Guide > Language Reference Guide > System Classes > TreeviewField Class > HasButtons Attribute
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HasButtons Attribute
Data Type: integer
4GL Access: RW
If the HasButtons attribute is set to TRUE, the TreeviewField has expansion buttons with [+] and [-] symbols to signify whether a node can be expanded or collapsed. To produce a +/- button at the root, HasRootLine Attribute also must to be set to TRUE.
Last modified date: 12/20/2023