State Changed Interface
允许在更改某个内部状态时通知树节点派生类。Allows a tree node derived class to be notified when some internal state has changed. 节点可相应更新其外观。The node can update its appearance accordingly.
public interface class INodeStateChanged
public interface INodeStateChanged
type INodeStateChanged = interface
Public Interface INodeStateChanged
获取用于通知状态已更改的对象的事件处理程序。Gets the event handler that is used to notify the object that the state is changed.