Occurs after all columns are removed from the TreeGrid or from specified parent column.
|e||Object||An event object which contains the event data|
This event can be handled by creating a function in your application controller $scope and applying this function as value to an attribute in TreeGrid directive:
The events attribute has a higher priority than the clear-columns attribute. If both attributes are set, the value from events attribute is used.
If all columns are removed from the TreeGrid, parent object within the event data is set to null.
Supported in: v1.0.