AttachToolbar() failed

I am trying to attach a toolbar and status-bar on the top and bottom of the full screen Layout.

I use myLayout.attachStatusBar();. It is fine on the bottom of screen. but the similar way to attach a toolbar is failed. It shows a blank area on the top of screen. Here is my code:

@ViewBag.Title - My ASP.NET Application @Styles.Render("~/Content/css") @Scripts.Render("~/bundles/modernizr")
<link rel="STYLESHEET" type="text/css" href="~/Content/DHX/dhtmlx.css">
<script type="text/javascript" src="~/Scripts/DHX/dhtmlx.js"></script>

<style>
    html, body {
        width: 100%; /*provides the correct work of a full-screen layout*/
        height: 100%; /*provides the correct work of a full-screen layout*/
        overflow: hidden; /*hides the default body's space*/
        margin: 0px; /*hides the body's scrolls*/
    }

</style>
<script type="text/javascript">

    function doOnLoad() {
        var myLayout = new dhtmlXLayoutObject({
            parent: document.body,
            pattern: "3W",
            cells: [
                { id: "a", text: "Navigation", collapse: true },
                { id: "b", text: "Main Page" },
                { id: "c", text: "Links", collapse: true }
            ]
        });

        var myToolbar = myLayout.attachToolbar({
            icons_path: "~/Content/DHX/imgs/",
            xml: "/Data/Toolbar.xml"
        });

        var myStatusbar = myLayout.attachStatusBar();
    
}
</script>
<div id="main" style="display: none; position: relative; width: 100%; height: 100%; overflow: auto;">
    @RenderBody()
</div>

Here is my test “Toolbar.xml” file:

<?xml version="1.0" encoding="utf-8" ?>

As you can see from above code, I only reference the dhtmlx.css and dhtmlx.js. Did I miss something?

Hi
Locally works fine, toolbar and status bar are attached.
What browser, dhx version and OS do you use?

Windows 7, DHX 4.0.3, IE 11 and Chrome 36.0.1985.143 and 37.0.2062.103

Locally forks fine with this conditions
Could you attach completed demo on support@dhtmlx.com with a link to this topic, please?
docs.dhtmlx.com/auxiliary_docs__ … pport.html