[英]How to get message error from Exception whit Ajax MVC 5 core
I'm trying to fill Field with user information using ajax.我正在尝试使用 ajax 用用户信息填充字段。 It work well;它运作良好;
ACTION行动
public Operatore User(int Id)
{
Operatore User = new Operatore();
/*
DO STUFF TO FILL USER
*/
/*if something go wrong
throw new Exception("user does not exist");
*/
return User;
}
but if i throw Exception with custom message i can't read it in Ajax但是如果我使用自定义消息抛出异常,我将无法在 Ajax 中读取它
AJAX AJAX
$.ajax({
type: "GET",
contentType: "application/json; charset=utf-8",
url: "@Url.Action("User")",
data: { Id: $("#ID").find(":selected").val()},
success: function (msg) {
/*FILL THE DATA*/
/*It works well*/
},
error: function (error) {
alert(error.Message);
/*this does not work*/
}
});
I just need to read my custom error message.我只需要阅读我的自定义错误消息。 The alert return "undefined" How can i do?警报返回“未定义”我该怎么办?
If something goes wrong (in operatore):如果出现问题(在操作员中):
Response.StatusCode = 500;
Return Json("Error Message");
StatusCode is necessary to mislead Ajax. StatusCode 是误导 Ajax 所必需的。 Beware your action must return an object.请注意,您的操作必须返回 object。
In Ajax:在 Ajax 中:
error: function (error) {
alert(error.responseJSON);
}
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