这是我要更新的地方:
<div style="text-align: center;" id="vote_count">@Html.DisplayFor(q => q.VoteCount)</div>
这是我的actionLink:
@Ajax.ActionLink("Upvote", "Upvote", "Author", new { QuestionID = Model.QuestionID, @class = "upvote" },
new AjaxOptions
{
InsertionMode = InsertionMode.Replace,
UpdateTargetId = "vote_count",
OnBegin = "onBegin",
OnComplete = "onComplete",
OnSuccess = "onSuccess",
OnFailure = "onFailure"
})
这是我的控制员之一:
public int Upvote(Guid QuestionID)
{
if ()
{
//I want to send error message
}
else
{
//I want to send an integer
}
}
我的问题:我想在我的视图页面上发送错误消息或整数来显示它。我该怎么做? 根据您推荐的建议,我可以更改所有代码。
感谢。
答案 0 :(得分:16)
public ActionResult Upvote(Guid QuestionID)
{
if (...)
{
return Content("some error message");
}
else
{
return Content("5 votes");
}
}
您在内容结果中返回的任何文本都将插入到div中。
另一种可能性是使用JSON:
public ActionResult Upvote(Guid QuestionID)
{
if (...)
{
return Json(new { error = "some error message" }, JsonRequestBehavior.AllowGet);
}
else
{
return Json(new { votes = 5 }, JsonRequestBehavior.AllowGet);
}
}
然后:
@Ajax.ActionLink("Upvote", "Upvote", "Author", new { QuestionID = Model.QuestionID, @class = "upvote" },
new AjaxOptions
{
OnSuccess = "onSuccess"
})
最后在onSuccess回调中:
function onSuccess(result) {
if (result.error) {
alert(result.error);
} else {
$('#vote_count').html(result.votes);
}
}