diff --git a/dev/App.vue b/dev/App.vue
index 2f4b9b2..b249778 100644
--- a/dev/App.vue
+++ b/dev/App.vue
@@ -9,7 +9,7 @@
     </div>
 </template>
 <script>
-  import { VueTreeList, Tree, TreeNode } from '../src'
+  import { VueTreeList, Tree, TreeNode } from '../dist/vue-tree-list.min'
   export default {
     components: {
       VueTreeList
diff --git a/dist/vue-tree-list.min.js b/dist/vue-tree-list.min.js
index 989d575..6a456ce 100644
--- a/dist/vue-tree-list.min.js
+++ b/dist/vue-tree-list.min.js
@@ -74,11 +74,11 @@ return /******/ (function(modules) { // webpackBootstrap
 	  /* template */
 	  __webpack_require__(15),
 	  /* scopeId */
-	  "data-v-f6d9fc8a",
+	  "data-v-713bd170",
 	  /* cssModules */
 	  null
 	)
-	Component.options.__file = "/Users/ayou/Workspace/vue-tree/src/VueTreeList.vue"
+	Component.options.__file = "E:\\demo\\vue-tree-list\\src\\VueTreeList.vue"
 	if (Component.esModule && Object.keys(Component.esModule).some(function (key) {return key !== "default" && key !== "__esModule"})) {console.error("named exports are not supported in *.vue files.")}
 	if (Component.options.functional) {console.error("[vue-loader] VueTreeList.vue: functional components are not supported with templates, they should use render functions.")}
 
@@ -89,9 +89,9 @@ return /******/ (function(modules) { // webpackBootstrap
 	  if (!hotAPI.compatible) return
 	  module.hot.accept()
 	  if (!module.hot.data) {
-	    hotAPI.createRecord("data-v-f6d9fc8a", Component.options)
+	    hotAPI.createRecord("data-v-713bd170", Component.options)
 	  } else {
-	    hotAPI.reload("data-v-f6d9fc8a", Component.options)
+	    hotAPI.reload("data-v-713bd170", Component.options)
 	  }
 	})()}
 
@@ -109,13 +109,13 @@ return /******/ (function(modules) { // webpackBootstrap
 	if(typeof content === 'string') content = [[module.id, content, '']];
 	if(content.locals) module.exports = content.locals;
 	// add the styles to the DOM
-	var update = __webpack_require__(9)("c9ed4450", content, false);
+	var update = __webpack_require__(9)("0727e1c8", content, false);
 	// Hot Module Replacement
 	if(false) {
 	 // When the styles change, update the <style> tags
 	 if(!content.locals) {
-	   module.hot.accept("!!../node_modules/css-loader/index.js!../node_modules/vue-loader/lib/style-compiler/index.js?{\"id\":\"data-v-f6d9fc8a\",\"scoped\":true,\"hasInlineConfig\":false}!../node_modules/less-loader/index.js!../node_modules/vue-loader/lib/selector.js?type=styles&index=0!./VueTreeList.vue", function() {
-	     var newContent = require("!!../node_modules/css-loader/index.js!../node_modules/vue-loader/lib/style-compiler/index.js?{\"id\":\"data-v-f6d9fc8a\",\"scoped\":true,\"hasInlineConfig\":false}!../node_modules/less-loader/index.js!../node_modules/vue-loader/lib/selector.js?type=styles&index=0!./VueTreeList.vue");
+	   module.hot.accept("!!../node_modules/css-loader/index.js!../node_modules/vue-loader/lib/style-compiler/index.js?{\"id\":\"data-v-713bd170\",\"scoped\":true,\"hasInlineConfig\":false}!../node_modules/less-loader/index.js!../node_modules/vue-loader/lib/selector.js?type=styles&index=0!./VueTreeList.vue", function() {
+	     var newContent = require("!!../node_modules/css-loader/index.js!../node_modules/vue-loader/lib/style-compiler/index.js?{\"id\":\"data-v-713bd170\",\"scoped\":true,\"hasInlineConfig\":false}!../node_modules/less-loader/index.js!../node_modules/vue-loader/lib/selector.js?type=styles&index=0!./VueTreeList.vue");
 	     if(typeof newContent === 'string') newContent = [[module.id, newContent, '']];
 	     update(newContent);
 	   });
@@ -133,7 +133,7 @@ return /******/ (function(modules) { // webpackBootstrap
 
 
 	// module
-	exports.push([module.id, "\n@font-face {\n  font-family: 'icomoon';\n  src: url(" + __webpack_require__(5) + ");\n  src: url(" + __webpack_require__(5) + "#iefix) format('embedded-opentype'), url(" + __webpack_require__(6) + ") format('truetype'), url(" + __webpack_require__(7) + ") format('woff'), url(" + __webpack_require__(8) + "#icomoon) format('svg');\n  font-weight: normal;\n  font-style: normal;\n}\n.vue-tree-icon[data-v-f6d9fc8a] {\n  /* use !important to prevent issues with browser extensions that change fonts */\n  font-family: 'icomoon' !important;\n  speak: none;\n  font-style: normal;\n  font-weight: normal;\n  font-variant: normal;\n  text-transform: none;\n  line-height: 1;\n  /* Better Font Rendering =========== */\n  -webkit-font-smoothing: antialiased;\n  -moz-osx-font-smoothing: grayscale;\n}\n.vue-tree-icon.item-icon[data-v-f6d9fc8a] {\n  margin-right: 4px;\n}\n.vue-tree-icon.item-icon[data-v-f6d9fc8a]:hover {\n  color: inherit;\n}\n.vue-tree-icon[data-v-f6d9fc8a]:hover {\n  color: blue;\n}\n.icon-file[data-v-f6d9fc8a]:before {\n  content: \"\\E906\";\n}\n.icon-folder[data-v-f6d9fc8a]:before {\n  content: \"\\E907\";\n}\n.icon-caret-down[data-v-f6d9fc8a]:before {\n  content: \"\\E900\";\n}\n.icon-caret-right[data-v-f6d9fc8a]:before {\n  content: \"\\E901\";\n}\n.icon-edit[data-v-f6d9fc8a]:before {\n  content: \"\\E902\";\n}\n.icon-folder-plus-e[data-v-f6d9fc8a]:before {\n  content: \"\\E903\";\n}\n.icon-plus[data-v-f6d9fc8a]:before {\n  content: \"\\E904\";\n}\n.icon-trash[data-v-f6d9fc8a]:before {\n  content: \"\\E905\";\n}\n.border[data-v-f6d9fc8a] {\n  height: 5px;\n}\n.border.up[data-v-f6d9fc8a] {\n  margin-top: -5px;\n  background-color: transparent;\n}\n.border.bottom[data-v-f6d9fc8a] {\n  background-color: transparent;\n}\n.border.active[data-v-f6d9fc8a] {\n  border-bottom: 3px dashed blue;\n  /*background-color: blue;*/\n}\n.tree-node[data-v-f6d9fc8a] {\n  display: -webkit-box;\n  display: -webkit-flex;\n  display: flex;\n  -webkit-box-align: center;\n  -webkit-align-items: center;\n          align-items: center;\n  padding: 5px 0 5px 1rem;\n}\n.tree-node .input[data-v-f6d9fc8a] {\n  border: none;\n  max-width: 150px;\n  border-bottom: 1px solid blue;\n}\n.tree-node[data-v-f6d9fc8a]:hover {\n  background-color: #f0f0f0;\n}\n.tree-node.active[data-v-f6d9fc8a] {\n  outline: 2px dashed pink;\n}\n.tree-node .caret[data-v-f6d9fc8a] {\n  margin-left: -1rem;\n}\n.tree-node .operation[data-v-f6d9fc8a] {\n  margin-left: 2rem;\n  letter-spacing: 1px;\n}\n.item[data-v-f6d9fc8a] {\n  cursor: pointer;\n}\n.tree-margin[data-v-f6d9fc8a] {\n  margin-left: 2em;\n}\n", ""]);
+	exports.push([module.id, "\n@font-face {\n  font-family: 'icomoon';\n  src: url(" + __webpack_require__(5) + ");\n  src: url(" + __webpack_require__(5) + "#iefix) format('embedded-opentype'), url(" + __webpack_require__(6) + ") format('truetype'), url(" + __webpack_require__(7) + ") format('woff'), url(" + __webpack_require__(8) + "#icomoon) format('svg');\n  font-weight: normal;\n  font-style: normal;\n}\n.vue-tree-icon[data-v-713bd170] {\n  /* use !important to prevent issues with browser extensions that change fonts */\n  font-family: 'icomoon' !important;\n  speak: none;\n  font-style: normal;\n  font-weight: normal;\n  font-variant: normal;\n  text-transform: none;\n  line-height: 1;\n  /* Better Font Rendering =========== */\n  -webkit-font-smoothing: antialiased;\n  -moz-osx-font-smoothing: grayscale;\n}\n.vue-tree-icon.item-icon[data-v-713bd170] {\n  margin-right: 4px;\n}\n.vue-tree-icon.item-icon[data-v-713bd170]:hover {\n  color: inherit;\n}\n.vue-tree-icon[data-v-713bd170]:hover {\n  color: blue;\n}\n.icon-file[data-v-713bd170]:before {\n  content: \"\\E906\";\n}\n.icon-folder[data-v-713bd170]:before {\n  content: \"\\E907\";\n}\n.icon-caret-down[data-v-713bd170]:before {\n  content: \"\\E900\";\n}\n.icon-caret-right[data-v-713bd170]:before {\n  content: \"\\E901\";\n}\n.icon-edit[data-v-713bd170]:before {\n  content: \"\\E902\";\n}\n.icon-folder-plus-e[data-v-713bd170]:before {\n  content: \"\\E903\";\n}\n.icon-plus[data-v-713bd170]:before {\n  content: \"\\E904\";\n}\n.icon-trash[data-v-713bd170]:before {\n  content: \"\\E905\";\n}\n.border[data-v-713bd170] {\n  height: 5px;\n}\n.border.up[data-v-713bd170] {\n  margin-top: -5px;\n  background-color: transparent;\n}\n.border.bottom[data-v-713bd170] {\n  background-color: transparent;\n}\n.border.active[data-v-713bd170] {\n  border-bottom: 3px dashed blue;\n  /*background-color: blue;*/\n}\n.tree-node[data-v-713bd170] {\n  display: -webkit-box;\n  display: -webkit-flex;\n  display: flex;\n  -webkit-box-align: center;\n  -webkit-align-items: center;\n          align-items: center;\n  padding: 5px 0 5px 1rem;\n}\n.tree-node .input[data-v-713bd170] {\n  border: none;\n  max-width: 150px;\n  border-bottom: 1px solid blue;\n}\n.tree-node[data-v-713bd170]:hover {\n  background-color: #f0f0f0;\n}\n.tree-node.active[data-v-713bd170] {\n  outline: 2px dashed pink;\n}\n.tree-node .caret[data-v-713bd170] {\n  margin-left: -1rem;\n}\n.tree-node .operation[data-v-713bd170] {\n  margin-left: 2rem;\n  letter-spacing: 1px;\n}\n.item[data-v-713bd170] {\n  cursor: pointer;\n}\n.tree-margin[data-v-713bd170] {\n  margin-left: 2em;\n}\n", ""]);
 
 	// exports
 
@@ -216,7 +216,7 @@ return /******/ (function(modules) { // webpackBootstrap
 /* 8 */
 /***/ (function(module, exports) {
 
-	module.exports = "data:image/svg+xml;base64,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"
+	module.exports = "data:image/svg+xml;base64,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"
 
 /***/ }),
 /* 9 */
@@ -1061,7 +1061,7 @@ return /******/ (function(modules) { // webpackBootstrap
 	if (false) {
 	  module.hot.accept()
 	  if (module.hot.data) {
-	     require("vue-hot-reload-api").rerender("data-v-f6d9fc8a", module.exports)
+	     require("vue-hot-reload-api").rerender("data-v-713bd170", module.exports)
 	  }
 	}
 
diff --git a/package.json b/package.json
index 873547e..200641f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-tree-list",
-  "version": "1.0.6",
+  "version": "1.0.7",
   "description": "A vue component for tree structure. Support adding treenode/leafnode, editing node's name and dragging.",
   "main": "dist/vue-tree-list.min.js",
   "scripts": {