Ext.tree.Panel实现单选，多选

Extjs

  1 var productCategoryTreeLookUpFn = function(callback) {
  2     var productCategoryLookUpWindow;
  3     var productCategoryTreeStore;
  4     var productCategoryTreeMenu;
  5
  6     if (!productCategoryLookUpWindow) {
  7
  8         // 加载菜单树
  9         productCategoryTreeStore = Ext.create(‘Ext.data.TreeStore‘, {
 10             fields : [‘id‘, ‘text‘],
 11             proxy: {
 12                 type: ‘ajax‘,
 13                 url: COMMON.APP_URL + ‘/view/master/selectProductCategoryForComboBoxTree.action‘
 14             },
 15             root: {
 16                 id: ‘0‘,
 17                 text : "产品分类",
 18                 expanded: true
 19             }
 20         });
 21
 22         var beforNode = null;
 23         productCategoryTreeMenu = Ext.create(‘Ext.tree.Panel‘, {
 24             store: productCategoryTreeStore,
 25             rootVisible : false,
 26             height : 300,
 27             animate : true, // 开启动画效果
 28             enableDD : false, // 不允许子节点拖动
 29             border : false, // 没有边框
 30             singleClickExpand : true,
 31             listeners : {
 32                 checkchange : function(node, checked, eOpts) {
 33 //                    setChildChecked(node, checked);
 34                     if(node.isNode){
 35                         if(beforNode != null){//把上一次选中节点取消选择,实现单选
 36                             beforNode.set("checked",false);
 37                         }
 38                         beforNode = node;
 39 //                        node.collapse();
 40 //                        node.cascadeBy(function(node) {
 41 //                            node.set("checked",checked);
 42 //                        });
 43                     }
 44                 }
 45             }
 46         });
 47
 48         function setChildChecked(node, checked){
 49             node.set({checked:checked});
 50             if(node.hasChildNodes()){
 51                 node.eachChild(function(child) {
 52                     setChildChecked(child, checked);
 53                 });
 54             }
 55         }
 56
 57         function setParentChecked(node, checked){
 58             node.set({checked:checked});
 59             var parentNode = node.parentNode;
 60             if(parentNode != null){
 61                 var flag = false;
 62                 parentNode.eachChild(function(child) {
 63                     if(child.data.checked == true){
 64                         flag = true;
 65                     }
 66                 });
 67                 if (checked == false) {
 68                     if(!flag){
 69                         setParentChecked(parentNode, checked);
 70                     }
 71                 } else {
 72                     if(flag){
 73                         setParentChecked(parentNode, checked);
 74                     }
 75                 }
 76              }
 77         }
 78
 79         productCategoryLookUpWindow = Ext.create(‘Ext.window.Window‘, {
 80             title : ‘产品分类信息‘,
 81             autoShow: true,
 82             width : 400,
 83             constrain : true,
 84             constrainHeader : true,
 85             maximizable : false,
 86             minimizable : false,
 87             resizable : false,
 88             closable : false,
 89             buttonAlign : ‘right‘,
 90             animateTarget: Ext.getBody(),
 91             modal : true,
 92             plain : true,
 93             border : true,
 94             closeAction : ‘destroy‘,
 95             items : [productCategoryTreeMenu],
 96             buttons : [{
 97                 text : ‘确定‘,
 98                 handler : function() {
 99                     var checkNodeArray = productCategoryTreeMenu.getChecked();
100                     var checkNodeString = ‘‘;
101                     var checkNodeTextString = ‘‘;
102                     for (var index = 0; index < checkNodeArray.length; index++) {
103                         checkNodeString += checkNodeArray[0].data.id;
104                         checkNodeTextString += checkNodeArray[0].data.qtip;
105                     }
106                     if (Ext.isFunction(callback)) {
107                         callback(checkNodeString, checkNodeTextString);
108                     }
109                     productCategoryLookUpWindow.destroy();
110                 }
111             }, {
112                 text : ‘关闭‘,
113                 handler : function() {
114                     productCategoryLookUpWindow.destroy();
115                 }
116             }]
117         });
118
119     }
120
121     productCategoryLookUpWindow.show();
122
123 };

Java

for (ProductCategoryVO dbVo : productCategoryVOList) {
                JSONObject obj = new JSONObject();
                obj.put("id", dbVo.getCategoryIdFull());
                obj.put("text", dbVo.getCategoryName());
                obj.put("qtip", dbVo.getCategoryNameFull());
                obj.put("leaf", !new Boolean(dbVo.getIsExistChildNode()));
                obj.put("checked", new Boolean(false));
//                obj.put("isExistChildNode", new Boolean(dbVo.getIsExistChildNode()));
//                obj.put("categoryId", dbVo.getCategoryId());
//                obj.put("categoryName", dbVo.getCategoryName());
//                obj.put("categoryIdFull", dbVo.getCategoryIdFull());
//                obj.put("categoryNameFull", dbVo.getCategoryNameFull());
//                obj.put("parentIdFull", dbVo.getParentIdFull());
//                obj.put("parentNameFull", dbVo.getParentNameFull());
//                obj.put("recordId", dbVo.getId());
//                obj.put("nodeLevel", dbVo.getNodeLevel());
                jsonArray.add(obj);
            }

原文地址：https://www.cnblogs.com/BobXie85/p/8269129.html