我想通过ajax更新部分视图,但它不起作用。看看这个模型类:
public class LogOnModel
{
[Required]
[Display(Name = "User name")]
public string UserName { get; set; }
[Required]
[DataType(DataType.Password)]
[Display(Name = "Password")]
public string Password { get; set; }
[Display(Name = "Remember me?")]
public bool RememberMe { get; set; }
public bool IsLoggedIn { get; set; }
public string ReturnUrl { get; set; }
}
以下观点:
@model ITW2012Mobile.ViewModels.LogOnModel
<div id='LogOn' style="background-color: White;">
@using (Ajax.BeginForm("LogOnAjax", "Home", new AjaxOptions { UpdateTargetId = "LogOn", OnSuccess = "logInComplete" }))
{
ITW2012Mobile.ViewModels.LogOnModel m = Model;
@Html.EditorFor(model => model.IsLoggedIn)
@Html.EditorFor(model => model.ReturnUrl)
<div>
@Html.ValidationSummary()
</div>
<div>
@Html.LabelFor(model => model.UserName)
@Html.EditorFor(model => model.UserName)
</div>
<div>
@Html.LabelFor(model => model.Password)
@Html.EditorFor(model => model.Password)
</div>
<div>
<input type="submit" value="Login" />
</div>
}
</div>
和以下控制器类:
public ActionResult LogOnAjax(LogOnModel model)
{
if (!User.Identity.IsAuthenticated)
{
if (ModelState.IsValid)
{
if (Membership.ValidateUser(model.UserName, model.Password))
{
FormsAuthentication.SetAuthCookie(model.UserName, model.RememberMe);
model.IsLoggedIn = true;
model.ReturnUrl = Url.Action("Index", "Home");
}
else
{
ModelState.AddModelError("", "The user name or password provided is incorrect.");
}
}
// If we got this far, something failed, redisplay form
return PartialView("PartialViewAjaxLogOn", model);
}
else
{
return PartialView("PartialViewLogOut");
}
}
即使用户名/密码正确且IsLoggedIn = true且ReturnUrl!=空视图显示这些变量的空字段(但调试器显示其中的值)。为什么以及如何正确使用它?
答案 0 :(得分:0)
尝试从模型状态清除您在操作中修改的值,或者如果您在html帮助程序中使用它们,则将使用旧值:
ModelState.Remove("IsLoggedIn");
model.IsLoggedIn = true;
ModelState.Remove("ReturnUrl");
model.ReturnUrl = Url.Action("Index", "Home");
另外请记住,在成功进行身份验证和cookie发布后,您不应显示视图(部分在您的情况下)。您应该重定向,以便客户端在后续请求中发送身份验证cookie。您应该重定向到返回网址。但是,由于您使用AJAX执行此操作,您应该向客户端发送一些指示认证成功,以便您可以在客户端上重定向。