diff --git a/demo/js/widget/tree/demo.multilayer_single_level_tree.js b/demo/js/widget/tree/demo.multilayer_single_level_tree.js
index cb5c21da0..49f4f9a39 100644
--- a/demo/js/widget/tree/demo.multilayer_single_level_tree.js
+++ b/demo/js/widget/tree/demo.multilayer_single_level_tree.js
@@ -7,23 +7,23 @@ Demo.MultiLayerSingleLevelTree = BI.inherit(BI.Widget, {
 
     render: function () {
         var self = this;
-        var tree = BI.createWidget({
+        this.tree = BI.createWidget({
             type: "bi.multilayer_single_level_tree",
-            items: BI.deepClone(Demo.CONSTANTS.TREE),
-            value: "第五级文件1"
+            items: [],
+            value: "第二级文件1"
         });
 
         return {
             type: "bi.vtape",
             items: [{
-                el: tree
+                el: this.tree
             }, {
                 el: {
                     type: "bi.button",
                     height: 25,
                     text: "getValue",
                     handler: function () {
-                        BI.Msg.alert("", JSON.stringify(tree.getValue()));
+                        BI.Msg.alert("", JSON.stringify(self.tree.getValue()));
                     }
                 },
                 height: 25
@@ -33,7 +33,7 @@ Demo.MultiLayerSingleLevelTree = BI.inherit(BI.Widget, {
                     height: 25,
                     text: "setValue (第二级文件1)",
                     handler: function () {
-                        tree.setValue(["第二级文件1"]);
+                        self.tree.setValue(["第二级文件1"]);
                     }
                 },
                 height: 25
@@ -41,6 +41,10 @@ Demo.MultiLayerSingleLevelTree = BI.inherit(BI.Widget, {
             width: 500,
             hgap: 300
         };
+    },
+
+    mounted: function () {
+        this.tree.populate(BI.deepClone(Demo.CONSTANTS.TREE));
     }
 });
 
diff --git a/dist/base.js b/dist/base.js
index be372e602..d52ed6ff0 100644
--- a/dist/base.js
+++ b/dist/base.js
@@ -34238,12 +34238,13 @@ BI.CustomTree = BI.inherit(BI.Widget, {
             if (BI.isNotEmptyArray(node.children) || node.isParent === true) {
                 var item = BI.extend({
                     type: "bi.expander",
-                    el: {},
+                    el: {
+                        value: node.value
+                    },
                     popup: {type: "bi.custom_tree"}
                 }, BI.deepClone(o.expander), {
                     id: node.id,
-                    pId: node.pId,
-                    value: node.value
+                    pId: node.pId
                 });
                 var el = BI.stripEL(node);
                 if (!BI.isWidget(el)) {
diff --git a/dist/bundle.js b/dist/bundle.js
index 8e5f37c84..6d6eee6e5 100644
--- a/dist/bundle.js
+++ b/dist/bundle.js
@@ -69724,12 +69724,13 @@ BI.CustomTree = BI.inherit(BI.Widget, {
             if (BI.isNotEmptyArray(node.children) || node.isParent === true) {
                 var item = BI.extend({
                     type: "bi.expander",
-                    el: {},
+                    el: {
+                        value: node.value
+                    },
                     popup: {type: "bi.custom_tree"}
                 }, BI.deepClone(o.expander), {
                     id: node.id,
-                    pId: node.pId,
-                    value: node.value
+                    pId: node.pId
                 });
                 var el = BI.stripEL(node);
                 if (!BI.isWidget(el)) {
@@ -97156,7 +97157,10 @@ BI.MultiLayerSingleLevelTree = BI.inherit(BI.Widget, {
     },
 
     getValue: function () {
-        return BI.uniq(this.tree.getValue());
+        return BI.filter(BI.uniq(this.tree.getValue()), function (idx, value) {
+            return BI.isNotNull(value);
+        });
+
     },
 
     getAllLeaves: function () {
diff --git a/dist/demo.js b/dist/demo.js
index 48d29334c..f4c100ea5 100644
--- a/dist/demo.js
+++ b/dist/demo.js
@@ -14231,23 +14231,23 @@ Demo.MultiLayerSingleLevelTree = BI.inherit(BI.Widget, {
 
     render: function () {
         var self = this;
-        var tree = BI.createWidget({
+        this.tree = BI.createWidget({
             type: "bi.multilayer_single_level_tree",
-            items: BI.deepClone(Demo.CONSTANTS.TREE),
-            value: "第五级文件1"
+            items: [],
+            value: "第二级文件1"
         });
 
         return {
             type: "bi.vtape",
             items: [{
-                el: tree
+                el: this.tree
             }, {
                 el: {
                     type: "bi.button",
                     height: 25,
                     text: "getValue",
                     handler: function () {
-                        BI.Msg.alert("", JSON.stringify(tree.getValue()));
+                        BI.Msg.alert("", JSON.stringify(self.tree.getValue()));
                     }
                 },
                 height: 25
@@ -14257,7 +14257,7 @@ Demo.MultiLayerSingleLevelTree = BI.inherit(BI.Widget, {
                     height: 25,
                     text: "setValue (第二级文件1)",
                     handler: function () {
-                        tree.setValue(["第二级文件1"]);
+                        self.tree.setValue(["第二级文件1"]);
                     }
                 },
                 height: 25
@@ -14265,6 +14265,10 @@ Demo.MultiLayerSingleLevelTree = BI.inherit(BI.Widget, {
             width: 500,
             hgap: 300
         };
+    },
+
+    mounted: function () {
+        this.tree.populate(BI.deepClone(Demo.CONSTANTS.TREE));
     }
 });
 
diff --git a/dist/widget.js b/dist/widget.js
index abbaaad8d..a779189f8 100644
--- a/dist/widget.js
+++ b/dist/widget.js
@@ -10485,7 +10485,10 @@ BI.MultiLayerSingleLevelTree = BI.inherit(BI.Widget, {
     },
 
     getValue: function () {
-        return BI.uniq(this.tree.getValue());
+        return BI.filter(BI.uniq(this.tree.getValue()), function (idx, value) {
+            return BI.isNotNull(value);
+        });
+
     },
 
     getAllLeaves: function () {
diff --git a/src/base/tree/customtree.js b/src/base/tree/customtree.js
index fb9eb1346..a72edba2a 100644
--- a/src/base/tree/customtree.js
+++ b/src/base/tree/customtree.js
@@ -44,12 +44,13 @@ BI.CustomTree = BI.inherit(BI.Widget, {
             if (BI.isNotEmptyArray(node.children) || node.isParent === true) {
                 var item = BI.extend({
                     type: "bi.expander",
-                    el: {},
+                    el: {
+                        value: node.value
+                    },
                     popup: {type: "bi.custom_tree"}
                 }, BI.deepClone(o.expander), {
                     id: node.id,
-                    pId: node.pId,
-                    value: node.value
+                    pId: node.pId
                 });
                 var el = BI.stripEL(node);
                 if (!BI.isWidget(el)) {
diff --git a/src/widget/multilayersingletree/multilayersingletree.leveltree.js b/src/widget/multilayersingletree/multilayersingletree.leveltree.js
index ae0948cc1..bf2dd6b31 100644
--- a/src/widget/multilayersingletree/multilayersingletree.leveltree.js
+++ b/src/widget/multilayersingletree/multilayersingletree.leveltree.js
@@ -112,7 +112,10 @@ BI.MultiLayerSingleLevelTree = BI.inherit(BI.Widget, {
     },
 
     getValue: function () {
-        return BI.uniq(this.tree.getValue());
+        return BI.filter(BI.uniq(this.tree.getValue()), function (idx, value) {
+            return BI.isNotNull(value);
+        });
+
     },
 
     getAllLeaves: function () {