Restangular和Asp.Net WebApi Post

Question

我试图将Asp.Net WebApi方法称为：

[HttpPost]
    [ActionName("Login2")]
    public bool Login(UserInfo userinfo)
    {
        return userinfo.Username == "sandeep@sa.com" && userinfo.Password == "chandra";
    }

从Restangular代码看起来像：

var lUserInfo = { Username: this.fEmail, Password: this.fPassword };
this.fLoginService.withConfig(x => x.setDefaultHeaders({ 'Content-Type': 'application/json' }))
    .all("v1Values").post("Login2", null,
        { userinfo: lUserInfo }).then(
            x => {
                var lLoggedIn: boolean = x == "true";
                this.fSessionService.fUserAuthenticated = lLoggedIn;
                if (lLoggedIn) {
                    this.fLocation.path('/dashboard');
                    return;
                }

                Utilities.Dialog.showError('Invalid Email or Password');
        });

我收到此错误：

"OPTIONS http://myserver:7220/api/v1Values 500 (Internal Server Error)"

我无法让它发挥作用。我无法看到身体中传递的userinfo。

我做错了什么？