jstree中的checkbox默认选中和隐藏示例代码

state: {checked: true}
$.jstree.defaults.checkbox.tie_selection

$('#demo_tree').jstree({
 "core" : {
  'data': [
   { "id" : "ajson1", "parent" : "#", "text" : "Simple root node", state: {checked: true}},
   { "id" : "ajson2", "parent" : "#", "text" : "Root node 2" },
   { "id" : "ajson3", "parent" : "ajson2", "text" : "Child 1" },
   { "id" : "ajson4", "parent" : "ajson2", "text" : "Child 2" },
  ]
 },
 "plugins" : ['checkbox'],
 "checkbox" : {
  "tie_selection": false,
 }
});

.no_checkbox>i.jstree-checkbox{display:none}

$('#demo_tree').jstree({
 "core" : {
  'data': [
   { "id" : "ajson1", "parent" : "#", "text" : "Simple root node", state: {checked: true}},
   { "id" : "ajson2", "parent" : "#", "text" : "Root node 2" },
   { "id" : "ajson3", "parent" : "ajson2", "text" : "Child 1" , a_attr: {class: "no_checkbox"}},
   { "id" : "ajson4", "parent" : "ajson2", "text" : "Child 2" },
  ]
 },
 "plugins" : ['checkbox'],
});