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Indicates whether BeginUpdate has been called at the start of an update to the node container.
Source position: comctrls.pp line 3288
public function TTreeNodes.IsUpdating: Boolean; virtual; |
Returns True if the internal update counter for the container has a non-zero value. Returns False when BeginUpdate has not been called, or when EndUpdate has caused the internal update count to return to zero (0).
Added in LCL version 4.0.
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Starts an update process for the tree nodes in the container. |
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Finishes an update process for the tree nodes in the container. |
| Version 4.0 | Generated 2025-05-03 | Home |