以顯示MODEL的錯誤信息為例子。Controller中拋出錯誤給View。
[HttpPost]
public ActionResult CreateComment(Comment comment)
{
if (!ModelState.IsValid)
{
List<string> sb = new List<string>();
//获取所有错误的Key
List<string> Keys = ModelState.Keys.ToList();
//获取每一个key对应的ModelStateDictionary
foreach (var key in Keys)
{
var errors = ModelState[key].Errors.ToList();
//将错误描述添加到sb中
foreach (var error in errors)
{
sb.Add(error.ErrorMessage);
}
}
return Json(sb);
}
else
{
return Json(commentRepository.InsertComment(comment));
}
}</string></string></string>
View端用JS來顯示，用JQuery自帶的方法。
$("#commentform").submit(function () {
$.ajax({
type: "POST",
url: "/AjaxResult/CreateComment/",
data: $(this).serialize(),
dataType: "json",
success: function (data) {
if (data == true) {
alert("成功");
ShowPage(articleID, pageSize, 1);
}
else if (data != true && data != false) {
var result = "";
for (var i in data) {
result = result + data[i] + "\r\n";
}
alert(result);
}
},
global: false
});
return false;
});
原始文章出自於此
![image_thumb[110]](https://lh3.googleusercontent.com/blogger_img_proxy/AEn0k_tqDyHLetzLEDabg3aroTP51O1mO3lZPd2fVqleYpzt5Aldvk46rQ3f4W1NV_J1J7TLBFN3UrCBKESrPm1AJq5HAZljmPEFCEgQa-cnpPgIrG77hk-GNUFR6jmUFaxCgQQJxzPZQ1XJlrTF7ACoocSjUfUccNdawUkmpS1CplpQOfR0nL0fJmmnIZRHoVbu3ge--eAWQnq2Bdln9EPQ-Pc2uCE-MkXJLoQ=s0-d "image_thumb[110]")