TTreeNode.Assign procedure
Implements object persistence for the TTreeNode type.
Declaration
procedure Assign(Source: TPersistent); overrideArguments
Source | Persistent object with properties copied in the method. |
Description
Assign is an overridden method in
TTreeNode used to
implement object persistence for the type. Assign ensures that property values
in Source are copied to the current class instance when it is derived from
TTreeNode. Properties copied from Source include:
- Text
- Data
- ImageIndex
- SelectedIndex
- OverlayIndex
- Height
- Focused
- Cut
- HasChildren
The node cache in the TTreeNodes owner is cleared prior to copying values from Source (when assigned).
If Source is not a TTreeNode instance, the inherited method is called to complete the assignment or raise an EConvertError exception if Source is unassigned.
See also
An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.