这是什么Romias上述延伸，在你的控制器，设置Model.State任何你想要的值。如果你想WI，然后Model.State应该等于这一点。

Extending on what Romias said, in your controller, set Model.State to whatever value you want. If you wanted 'WI', then Model.State should equal that.

控制器

public ActionResult Index()
{
    var m = new TestViewModel();
    m.State = "WI";
    return View(m);
}

查看

@Html.DropDownListFor(m => m.State, new SelectList(Model.StateList, "Value", "Text", Model.State))