I'm creating a website in ASP.NET MVC and have stumbled across something I really can't figure out.
我正在ASP.NET MVC中创建一个网站,偶然发现了一些我真想不通的东西。
I've got a user profile page that allows a user to change his password. On the serverside, I want to validate that the user has entered a correct "current" password before allowing the change.
我有一个用户个人资料页面,允许用户更改他的密码。在服务器端,我想验证用户是否在允许更改之前输入了正确的“当前”密码。
What's the best way to return to my View when the password isn't correct? I've tried using ModelState.AddModelError and then return Json(View()) but I can't see the error message anywhere in the JSON object returned to the browser.
当密码不正确时,返回我的View的最佳方法是什么?我已经尝试使用ModelState.AddModelError然后返回Json(View())但我无法在返回浏览器的JSON对象中的任何位置看到错误消息。
What's the best way to do this using jquery on the client?
在客户端使用jquery执行此操作的最佳方法是什么?
/Jesper
2 个解决方案
#1
I would create to classes
我会创建课程
JsonOK : JsonResult { ... }
JsonError : JsonResult { ... }
And use those 2 for OK and Error responses.
并将这些2用于确定和错误响应。
try
{
...
}
catch (Exception ex)
{
return JsonError(ex.Message);
// or output your own message
// or pass into it ModelState with your errors
}
#2
ModelState does not automatically do anything with the returned Json. You should manually fill in a model object with data you want to return to the client.
ModelState不会自动对返回的Json执行任何操作。您应该使用要返回到客户端的数据手动填写模型对象。
Alternatively, if you want to report errors to the client, you can throw an exception in the controller action method and handle it in jQuery.
或者,如果要向客户端报告错误,可以在控制器操作方法中抛出异常并在jQuery中处理它。
#1
I would create to classes
我会创建课程
JsonOK : JsonResult { ... }
JsonError : JsonResult { ... }
And use those 2 for OK and Error responses.
并将这些2用于确定和错误响应。
try
{
...
}
catch (Exception ex)
{
return JsonError(ex.Message);
// or output your own message
// or pass into it ModelState with your errors
}
#2
ModelState does not automatically do anything with the returned Json. You should manually fill in a model object with data you want to return to the client.
ModelState不会自动对返回的Json执行任何操作。您应该使用要返回到客户端的数据手动填写模型对象。
Alternatively, if you want to report errors to the client, you can throw an exception in the controller action method and handle it in jQuery.
或者,如果要向客户端报告错误,可以在控制器操作方法中抛出异常并在jQuery中处理它。