jQuery 显示 JSON 返回的错误信息
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To show JSON returned error message
提问by VVR147493
I needs to show the Jsonreturned message.
我需要显示Json返回的消息。
In the controller, an exception is thrown and caught in a catch block. I am returning the fault error message.
在控制器中，抛出异常并在 catch 块中捕获。我正在返回故障错误消息。
In Ajax, the successpart always executes. But if it is an error from my webservice, I don't want to execute the normal; instead I want to show an error message.
在Ajax 中，成功部分总是会执行。但是如果是我的webservice错误，我不想执行正常的；相反，我想显示一条错误消息。
How I can achieve this?
我怎么能做到这一点？
My code below:
我的代码如下：
Controller
控制器
[HttpPost]
public JsonResult DeleteClientRecord()
{
bool result = true;
try
{
result = ClientCRUDCollection.DeleteClient(deleteClientId);
}
catch (Exception ex)
{
return Json(ex.Message, JsonRequestBehavior.AllowGet);
}
return Json(new { result }, JsonRequestBehavior.AllowGet);
}
AJAX Call
AJAX 调用
$("#YesDelete").click(function () {
$.ajax({
type: "POST",
async: false,
url: "/Client/DeleteClientRecord",
dataType: "json",
error: function (request) {
alert(request.responseText);
event.preventDefault();
},
success: function (result) {
// if error from webservice I want to differentiate here somehow
$("#Update_" + id).parents("tr").remove();
$('#myClientDeleteContainer').dialog('close');
return false;
}
});
});
Please can anyone help me on this.
请任何人都可以帮助我。
回答by Dave Alperovich
[HttpPost]
public JsonResult DeleteClientRecord()
{
bool result = true;
try
{
result = ClientCRUDCollection.DeleteClient(deleteClientId);
}
catch (Exception ex)
{
return Json(new { Success="False", responseText=ex.Message});
}
return Json(new { result }, JsonRequestBehavior.AllowGet);
}
回答by Hala
to show error message, you should add error scope after success scope in AJAX call like this:
要显示错误消息，您应该在 AJAX 调用中的成功范围之后添加错误范围，如下所示：
$("#YesDelete").click(function () {
$.ajax({
type: "POST",
async: false,
url: "/Client/DeleteClientRecord",
dataType: "json",
error: function (request) {
alert(request.responseText);
event.preventDefault();
},
success: function (result) {
// if error from webservice I want to differentiate here somehow
$("#Update_" + id).parents("tr").remove();
$('#myClientDeleteContainer').dialog('close');
return false;
}
error: function (xhr) {alert(JSON.parse(xhr.responseText).Message); }
});
});
