TreeSelect：树形选择框

参考示例： TreeSelect：树形选择框

创建TreeSelect

<input id="select1" class="mini-treeselect" url="../data/listTree.txt" 
    textField="text" valueField="id" parentField="pid" 
/>

数据结构

[
    {id: "base", text: "Base", expanded: false},
    
    {id: "ajax", text: "Ajax", pid: "base"},
    {id: "json", text: "JSON", pid: "base"},
    {id: "date", text: "Date", pid: "base"},
    {id: "control", text: "Control", pid: "base"},

    {id: "forms", text: "Forms", expanded: false},
    
    {id: "button", text: "Button", pid: "forms"},
    {id: "listbox", text: "ListBox", pid: "forms"},
    {id: "checkboxlist", text: "CheckBoxList", pid: "forms"},
    
    {id: "lists", text: "Lists", expanded: false},
    
    {id: "datagrid", text: "DataGrid", pid: "lists"},            
    {id: "tree", text: "Tree", pid: "lists"},
    {id: "treegrid", text: "TreeGrid ", pid: "lists"},

    {id: "layouts", text: "Layouts", expanded: false},
    
    {id: "panel", text: "Panel", pid: "layouts"},
    {id: "splitter", text: "Splitter", pid: "layouts"},
    {id: "layout", text: "Layout ", pid: "layouts"},

    {id: "navigations", text: "Navigations", expanded: false},
        
    {id: "pager", text: "Pager", pid: "navigations"},
    {id: "tabs", text: "Tabs", pid: "navigations"},
    {id: "navbar", text: "OutlookBar", pid: "navigations"},
    {id: "menu", text: "Menu", pid: "navigations"}

]