Vcl.ComCtrls.TTVExpandingEvent

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C++

typedef void __fastcall (__closure *TTVExpandingEvent)(System::TObject* Sender, TTreeNode* Node, bool &AllowExpansion);

Properties

Type	Visibility	Source	Unit	Parent
typedef	public	Vcl.ComCtrls.hpp	Vcl.ComCtrls	Vcl.ComCtrls

Description

This event is used in the TCustomTreeView.OnExpanding event when a node is about to be expanded.

Sender is the tree-view control in which a node is about to be expanded.

Node is the node about to be expanded.

AllowExpansion indicates whether the node can be expanded.

See Also

• FullExpand

• Expand

• OnExpanding

• OnExpanded

• Procedural types

• Creating events