diff --git a/addons/web/static/src/css/base.css b/addons/web/static/src/css/base.css
index 8df712d88d1..54284aa6be8 100644
--- a/addons/web/static/src/css/base.css
+++ b/addons/web/static/src/css/base.css
@@ -2215,6 +2215,56 @@
   color: #333333;
 }
 
+.openerp .tree_header {
+  background-color: #f0f0f0;
+  border-bottom: 1px solid #cacaca;
+  color: #4c4c4c;
+  padding: 5px;
+}
+.openerp .tree_header button {
+  float: right;
+}
+.openerp .oe-treeview-table {
+  width: 100%;
+  background-color: white;
+  border-spacing: 0;
+}
+.openerp .oe-treeview-table th {
+  padding: 10px;
+  color: #4c4c4c;
+  font-weight: bold;
+  background-color: #f0f0f0;
+  border-bottom: 2px solid #cacaca;
+}
+.openerp .oe-treeview-table .treeview-tr, .openerp .oe-treeview-table .treeview-td {
+  cursor: pointer;
+  border-right: 1px dotted #afafb6;
+  vertical-align: top;
+  text-align: left;
+  border-bottom: 1px solid #cfcccc;
+}
+.openerp .oe-treeview-table tr:hover {
+  background-color: #e0e0f8;
+}
+.openerp .oe-treeview-table .oe-number {
+  text-align: right !important;
+}
+.openerp .oe-treeview-table span {
+  font-size: 90%;
+  font-weight: normal;
+  white-space: nowrap;
+  display: block;
+}
+.openerp .oe-treeview-table .treeview-tr.oe-treeview-first {
+  background: transparent url(/web/static/src/img/expand.gif) 0 50% no-repeat;
+}
+.openerp .oe-treeview-table .oe_open .treeview-tr.oe-treeview-first {
+  background-image: url(/web/static/src/img/collapse.gif);
+}
+.openerp .oe-treeview-table .treeview-tr.oe-treeview-first span, .openerp .oe-treeview-table .treeview-td.oe-treeview-first span {
+  margin-left: 16px;
+}
+
 .kitten-mode-activated {
   background-image: url(http://placekitten.com/g/1365/769);
   background-size: cover;
diff --git a/addons/web/static/src/css/base.sass b/addons/web/static/src/css/base.sass
index 2846ce7235d..9dbe2f71ffe 100644
--- a/addons/web/static/src/css/base.sass
+++ b/addons/web/static/src/css/base.sass
@@ -1747,6 +1747,46 @@ $colour4: #8a89ba
         float: right
         color: #333
     // }}}
+//Tree view
+.openerp
+    .tree_header
+        background-color: #f0f0f0
+        border-bottom: 1px solid #cacaca
+        color: #4c4c4c
+        padding: 5px
+        button
+            float: right
+    .oe-treeview-table
+        width: 100%
+        background-color: white
+        border-spacing: 0
+        th
+            padding: 10px
+            color: #4c4c4c
+            font-weight: bold
+            background-color: #f0f0f0
+            border-bottom: 2px solid #cacaca
+        .treeview-tr, .treeview-td
+            cursor: pointer
+            border-right: 1px dotted #afafb6
+            vertical-align: top
+            text-align: left
+            border-bottom: 1px solid #cfcccc
+        tr:hover
+            background-color: #e0e0f8
+        .oe-number
+            text-align: right !important
+        span
+            font-size: 90%
+            font-weight: normal
+            white-space: nowrap
+            display: block
+        .treeview-tr.oe-treeview-first
+            background: transparent url(/web/static/src/img/expand.gif) 0 50% no-repeat
+        .oe_open .treeview-tr.oe-treeview-first
+            background-image: url(/web/static/src/img/collapse.gif)
+        .treeview-tr.oe-treeview-first span, .treeview-td.oe-treeview-first span
+            margin-left: 16px
 // Kitten Mode {{{
 .kitten-mode-activated
     background-image: url(http://placekitten.com/g/1365/769)
diff --git a/addons/web/static/src/js/view_tree.js b/addons/web/static/src/js/view_tree.js
index e8bd7351f1f..363bf6258f1 100644
--- a/addons/web/static/src/js/view_tree.js
+++ b/addons/web/static/src/js/view_tree.js
@@ -112,7 +112,12 @@ instance.web.TreeView = instance.web.View.extend(/** @lends instance.web.TreeVie
                 $select.change();
             }
         });
-
+        this.$element.find("#tree_view_expand").click(function(){
+                self.expand_all();
+        });
+        this.$element.find("#tree_view_collapse").click(function(){
+            self.collpase_all();
+        });
         // TODO store open nodes in url ?...
         this.do_push_state({});
 
@@ -128,6 +133,17 @@ instance.web.TreeView = instance.web.View.extend(/** @lends instance.web.TreeVie
                 return [color, py.parse(py.tokenize(expr)), expr];
             }).value();
     },
+    expand_all: function(){
+    },
+    collpase_all: function(){
+        var self = this;
+        var root_tr = this.$element.find(".oe-treeview-table tbody tr[data-level='"+1+"']");
+        _.each(root_tr,function(rec){
+            if($(rec).hasClass('oe_open')){
+                self.showcontent($(rec).attr('data-id'),false);
+            }
+        });
+    },
     /**
      * Returns the color for the provided record in the current view (from the
      * ``@colors`` attribute)
@@ -259,13 +275,5 @@ instance.web.TreeView = instance.web.View.extend(/** @lends instance.web.TreeVie
         }, this);
     },
 
-    do_show: function () {
-        this.$element.show();
-    },
-
-    do_hide: function () {
-        this.$element.hide();
-        this.hidden = true;
-    }
 });
 };
diff --git a/addons/web/static/src/xml/base.xml b/addons/web/static/src/xml/base.xml
index 46fab28d791..5b21802f91a 100644
--- a/addons/web/static/src/xml/base.xml
+++ b/addons/web/static/src/xml/base.xml
@@ -535,14 +535,16 @@
 </t>
 
 <t t-name="TreeView">
-    <select t-if="toolbar" style="width: 30%">
-    </select>
-    <table class="oe_tree_table">
+    <div class = "tree_header">
+         <select t-if="toolbar" ></select>
+         <button id = "tree_view_collapse">Collapse All</button>
+         <button id = "tree_view_expand">Expand All</button>
+     </div>
+    <table class="oe-treeview-table">
         <thead>
             <tr>
                 <th t-foreach="fields_view" t-as="field"
-                    t-if="!field.attrs.modifiers.tree_invisible"
-                    class="treeview-header">
+                    t-if="!field.attrs.modifiers.tree_invisible">
                     <t t-esc="fields[field.attrs.name].string" />
                 </th>
             </tr>
@@ -557,7 +559,7 @@
         t-att-data-id="record.id" t-att-data-level="level + 1">
     <t t-set="children" t-value="record[children_field]"/>
     <t t-set="class" t-value="children and children.length ? 'treeview-tr' : 'treeview-td'"/>
-    <t t-set="rank" t-value="'oe_tree_first'"/>
+    <t t-set="rank" t-value="'oe-treeview-first'"/>
     <t t-set="style" t-value="'background-position: ' + 19*level + 'px; padding-left: ' + 19*level + 'px;'"/>
 
     <td t-foreach="fields_view" t-as="field"