TTreeNodeExpandedState

[Properties (by Name)] [Methods (by Name)] [Events (by Name)]

TTreeNodeExpandedState - class to store and restore the expanded state of a TTreeView. The nodes are identified by their Text property.

Declaration

Source position: comctrls.pp line 3824

`type TTreeNodeExpandedState = class`
`public`
`NodeText: string;`		`NodeText` - the text in the current node
`Children: TAvlTree;`		`Children` - the children of the current node, as an AvgLvlTree
`constructor Create();`		`Create` - constructor for the rest of the tree structure
`destructor Destroy; override;`
`procedure Clear;`		`Clear` the nodes from the tree structure
`procedure CreateChildNodes();`		`CreateChildNodes` - constructor for the offspring nodes
`procedure Apply();`		`Apply` - continue reconstructing the tree structure by adding the remaining nodes in succession
`property OnGetNodeText: TTVGetNodeText; [rw]`
`end;`

Inheritance

`TTreeNodeExpandedState`		`TTreeNodeExpandedState` - class to store and restore the expanded state of a TTreeView. The nodes are identified by their Text property.
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`TObject`

Description

TTreeNodeExpandedState - class to store and restore the expanded state of a TTreeView. The nodes are identified by their Text property.

Usage example:

// save old expanded state
      OldExpanded:=TTreeNodeExpandedState.Create(ATreeView);
      ... change a lot of nodes ...
      // restore old expanded state
      OldExpanded.Apply(ATreeView);
      OldExpanded.Free;

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