使用复选框，当所有子节点都删除后，父节点也将在JStree中删除

Question

如果使用CheckBox插件且所有子节点均被删除，则父节点也将被删除。

$('#jstree').jstree({
"core" : {
    "check_callback" : true,
    "data" : [
        { "text" : "Branch 1", "type" : "branch", "children" : [
            { "text" : "leaf 1.1", "type" : "leaf" },
            { "text" : "leaf 1.2", "type" : "leaf" },
            { "text" : "leaf 1.3", "type" : "leaf" }
           ]
        },
        { "text" : "Branch 2", "type" : "branch", "children" : [
            { "text" : "leaf 2.1", "type" : "leaf" },
            { "text" : "leaf 2.2", "type" : "leaf" },
            { "text" : "leaf 2.3", "type" : "leaf" }
           ]
        }
    ]
},
        "types" : {
            "#" : {
                "valid_children" : ["branch"]
            },
            "branch" : {
                "valid_children" : ["leaf"]
            },
            "leaf" : {
                "valid_children" : []
            }
        },
"plugins" : ["checkbox","types", "dnd", "contextmenu"]});

这是一个jsFiddle演示。了解更多： http://jsfiddle.net/z8L5r9w3/1/

Answer 1

您可以使用jsTree复选框配置属性'three_state'和'cascade'，以便在选择所有子节点时不选择父级。使用以下配置，您可以禁用父节点选择，并确保为某个父节点选择自动选择了子节点。

"checkbox" : {
  "three_state": false,
  "cascade": "down"
}

您还可以查看jsTree文档here

编辑：删除级联属性可确保在选择节点时不会选择任何子节点或父节点。