Ajax.beginform prevent jump to new page

@using (Ajax.beginform ("Changecompanyid", "navigation", new {area = "configs"}, new Ajaxoptions () {Updatetargetid = "Na Vigationtree ", onsuccess =" Inittreenode "}))
{
@Html. DropDownList ("CompanyID")
}
<link href= "@Url. Content (" ~/content/themes/common/css/jquery.treeview.css ")" rel= "stylesheet"/>
<div style= "Display:none;" >
@Html. CheckBox ("Isbarringchildrens", (bool) viewbag.isbarringchildrens)
<span> does not contain sub-navigation
</span>
</div>
<div id= "Navigationtree" >
@Html. Action ("TreeNode", new {CompanyID = (int) Viewbag.companyidvalue})
</div>

To refer to the following.

<script src= "@Url. Content (" ~/scripts/common/jquery/jquery.unobtrusive-ajax.min.js ")" ></script>

Ajax.beginform prevent jump to new page