How to add data from multiple models in a webgrid ASP.NET MVC razor view ?

See more:

ASP.NET

MVC3

Razor

i binded webgrid with a single model data in a controller .
but how do i bind the webgrid with data of two models .

What I have tried:

@model IEnumerable<WebApplication4.Models.Register>

@{
    ViewBag.Title = "getgrid";
    WebGrid gridview = new WebGrid(Model, ajaxUpdateContainerId : "ajaxgrid");
}

<h2>getgrid</h2>

@gridview.GetHtml(columns: new[]

{
gridview.Column("ID"),
gridview.Column("FirstName"),
gridview.Column("LastName"),
gridview.Column("CH",format: @<text><input name="chkbox"
                                  type="checkbox"/></text>),
}

            )


Public ActionResult webgridview(){
list<register> li=new list<register>();
return view(li);
}

here above i binded register class to grid but i want to bind other class details also .am not finding the proper answer for that.