Javascript TreeGrid library supporting virtualization without paging

I'm looking for a javascript Grid Control which meets the following requirements:

• Being able to show hierarchical data


• "Load on demand" at all levels of the data hierarchy i.e. data virtualization should be used when expanding a node, i.e. so that not all children of a particular node is loaded when the node is expanded, but only when scrolled into view.


• Virtual scroll of hierarchical data (no paging)

Which data grids in JavaScript, meets these requirements?