Use <vaadin-grid-tree-toggle> in the cell content
to make a tree UI inside a grid. You need to update the expanded,
level, and leaf properties in your renderer.
NOTE: You must explicitly import the vaadin-grid-tree-toggle.html
file in order to use <vaadin-grid-tree-toggle>.
Use <vaadin-grid-tree-toggle> in the column body
template to make a tree UI inside a grid. Make sure you have bindings
for the expanded, level, and leaf
properties.