I think the only solution is to create the “rtl” feature yourself.
This css does the work fine:
.jqx-tree-item-li {
text-align: right;
direction: rtl;
margin-left: 0 !important;
}
[class=”jqx-tree-item-li”] {
margin-right: 16px !important;
}
span[class*=”jqx-tree-item-“] {
float: right !important;
}
.jqx-tree-dropdown-root {
width: 190px !important;
}
.jqx-tree-dropdown {
padding: 0 10px 0 0;
}