'宣言 Protected Overridable Sub OnBeforeExitEditMode( _ ByRef cancel As Boolean, _ ByVal forceExit As Boolean, _ ByVal applyChanges As Boolean _ )
protected virtual void OnBeforeExitEditMode( ref bool cancel, bool forceExit, bool applyChanges )
ExpandableEditorWithText クラス ExpandableEditorWithText メンバ