button of the Columns property of the TreeList and TreeCombo components in the object inspector:Columns: ITreeListColumns;
The Columns property returns the component columns collection.
The columns are added in the special editor. The Columns Editor dialog box opens on clicking the button of the Columns property of the TreeList and TreeCombo components in the object inspector:
The Columns Editor dialog box contains three buttons:
Add. Adds a new column to the component.
Delete. Deletes the current selected column.
Close. Closes the editor dialog box.
See also: