Newly released!! DataGrid component for REACT: http://reactdatagrid.com
The Flex MultiSelect ComboBox control is a new control provided by the Flexicious library that allows multiple select or single select checkbox list without the need for a repeater.

<!--Data bound CheckBox List example -->

<!--CheckBox List (With Flexicious)-->
<controls:MultiSelectComboBox dataProvider="{Employee.allStates}" rowCount="4" bindingSource="{employee1}" bindingProperty="stateCode"/>

<!--MultiSelectComboBox (Without flexicious)-->
Not Supported