The TreeNodeCheckingEventArgs class implements argument of the event that occurs before the element flag selection is changed.
| Designer name | Brief description | |
| The Create designer creates argument of the event that occurs before the element flag selection is changed. |
| Property name | Brief description | |
| The Allow property determines whether it is possible to change selection of the element flag. |
| Property name | Brief description | |
| The Value property returns set value of the element check box selection. |
| Property name | Brief description | |
| Node | The Node property returns a node for which the event was generated. |
| Property name | Brief description | |
| The TreeControl property returns the component for which the event was generated. |
See also: