textField	string	The underlying data field name to bind to this ComboTree. Available since version 1.5.2.
  $('#Label').combotree({
      url: '?getLabels'
    , idField: 'ID'
    , textField: 'Name'
    //, valueField: 'Name'
    //, treeField: 'Name'
  ...
 });
json and result in screenshots