Could you clarify, do you mean Umbraco backoffice member or website user?

How do you handle the login form? It would be nice to see some your code snippets...

sure,I want to refresh/reload current page after user login

here is my snippet, it is working fine , the only thing is i need to refresh the page.

<fieldset>

                @Html.ValidationSummary("loginModel", true)
                <label>User Name</label>
                @Html.TextBoxFor(m => loginModel.Username, new { placeholder = "User Name" , @class = "form-control"  })
                @Html.ValidationMessageFor(m => loginModel.Username)
                <br/>
                 <label>Password</label>
                 @Html.PasswordFor(m => loginModel.Password,new {placeholder="Password" , @class = "form-control" })
                 @Html.ValidationMessageFor(m => loginModel.Password)
                <br/>
                <div class="form-group">    
                    <button class="btn btn-primary btn-block" >Sign in</button>

                </div>

</fieldset> 

So how do you submit above login functionality? I guess you use some javascript logic to handle that...

I think it would be much better to use some Umbraco form with Surface controller. Then the page reload would be handled automatically with POST request...

The View:

@{
   var loginModel = new CustomLoginModel();
}

@using (Html.BeginUmbracoForm<LoginController>("HandleLogin", null, new { @class = "login-form" }))  
{
            @Html.LabelFor(m => loginModel.Username)
            @Html.ValidationMessageFor(m => loginModel.Username, null, new {@class = "validation-message"})
            @Html.TextBoxFor(m => loginModel.Username, new {@class = "form-control"})

            @Html.LabelFor(m => loginModel.Password)
            @Html.ValidationMessageFor(m => loginModel.Password, null, new {@class = "validation-message"})
            @Html.PasswordFor(m => loginModel.Password, new {@class = "form-control"})

            <button type="submit" class="btn btn-primary">Sign in</button> 
}

The controller:

public class LoginController : SurfaceController
{
    [HttpPost]
    public ActionResult HandleLogin([Bind(Prefix = "loginModel")]CustomLoginModel model)
    {
        if (ModelState.IsValid)
        {
            if (Membership.ValidateUser(model.Username, model.Password))
            {
                FormsAuthentication.SetAuthCookie(model.Username, true);
                return RedirectToCurrentUmbracoPage();
            }
        }
        TempData["LoginFailed"] = true;
        return CurrentUmbracoPage();
    }
}

In that case you basically can't use it. That's because before you could use it you have to compile it.

You can use then the default Umbraco login controller. Please do as described below:

    @{
        var loginModel = new LoginModel();
        loginModel.RedirectUrl = "/your-url"; //redirect to the specific url after successful sign in
     }

@using (Html.BeginUmbracoForm<UmbLoginController>("HandleLogin"))
{
    <fieldset>
        <legend>Login</legend>

        @Html.ValidationSummary("loginModel", true)

        @Html.LabelFor(m => loginModel.Username)
        @Html.TextBoxFor(m => loginModel.Username)
        @Html.ValidationMessageFor(m => loginModel.Username)
        <br />

        @Html.LabelFor(m => loginModel.Password)
        @Html.PasswordFor(m => loginModel.Password)
        @Html.ValidationMessageFor(m => loginModel.Password)
        <br />

        @Html.HiddenFor(m => loginModel.RedirectUrl)
        <button>Login</button>
    </fieldset>
}

is working on a reply...