This alphanumeric property is used to set or retrieve the hint text of an item identified by the Item property. Such text is shown when the mouse pointer is placed on the Tree-View item.

When the Tree-View has the Table-View style, you can set the hint for the whole item or just for some columns, depending on whether or not you use the X property. For example:

or

set the hint on the entire item; the hint will appear when the mouse pointer hovers on any of the item columns. Instead

or

set the hint only for the third column; the hint will appear only when the mouse pointer hovers on the third column.

 

Example - Modify the hint text of a specific item of a tree-view