[英]getJSON data function doesnt work on IIS
我有一對用於類型和子類型的級聯下拉列表。 當在本地以調試模式進行測試時,這些選項可以完美地工作,但是一旦我發布到IIS,子類型列表就不會填充並且為空。 我沒有收到任何錯誤消息。 我曾在IE9和Google Chrome V46中嘗試過此方法,但得到的結果相同。
控制器是:
public ViewResult StartRA()
{
var user = User.Identity.Name;
string userName = user.Substring(7);
var creator = Peopledb.People.FirstOrDefault(x => x.Username == userName);
var creatorContractId = (int)Session["LoggedContractId"];
StartRiskAssessmentViewModel viewModel = new StartRiskAssessmentViewModel
{
RiskAssessment = new RiskAssessment(),
CreatorId = creator.PersonId,
CreatorContractId = creatorContractId,
Assessor = creator.FirstName + " " + creator.LastName,
Locations = Peopledb.Locations.Where(x => x.Dormant == false).OrderBy(x => x.LocationName).ToList(),
Types = db.Types.Where(x => x.Dormant == false).ToList(),
};
return View(viewModel);
}
[AcceptVerbs(HttpVerbs.Get)]
public ActionResult SubTypeList(int typeId)
{
var subTypes = db.SubTypes.Where(x => x.Dormant == false && x.TypeId == typeId).ToList();
if (HttpContext.Request.IsAjaxRequest())
return Json(new SelectList(
subTypes,
"SubTypeId",
"SubTypeName"), JsonRequestBehavior.AllowGet
);
return View(subTypes);
}
剃刀視圖為:
@model RACentral.ViewModels.StartRiskAssessmentViewModel
@{
ViewBag.Title = "Start RA";
}
@using (Html.BeginForm())
{
@Html.AntiForgeryToken()
<div class="form-horizontal">
<hr />
@Html.ValidationSummary(true, "", new { @class = "text-danger" })
<h3 class="col-md-offset-2">Type</h3>
<div class="form-group">
@Html.LabelFor(model => model.TypeId, htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10">
@Html.DropDownListFor(model => model.TypeId, new SelectList(Model.Types, "TypeId", "TypeName", 0), "Please Select", new { @class = "form-control", @id = "Types" })
@Html.ValidationMessageFor(model => model.TypeId, "", new { @class = "text-danger" })
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.SubTypeId, htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10">
<select id="SubTypes" name="SubTypeId" class="form-control"></select>
@Html.ValidationMessageFor(model => model.SubTypeId, "", new { @class = "text-danger" })
</div>
</div>
<hr />
@Html.ValidationSummary(true, "", new { @class = "text-danger" })
<div class="form-group">
<div class="col-md-offset-2 col-md-10">
<input type="submit" value="Create" class="btn btn-primary" /> @Html.ActionLink("Cancel", "IndexLoggedIn", "Home", null, new { @Class = "btn btn-danger" })
</div>
</div>
</div>
}
@section Scripts {
@Scripts.Render("~/bundles/jqueryval")
<script type="text/javascript">
$(function () {
$("#Types").change(function () {
$.getJSON('@Url.Action("SubTypeList","RiskAssessment")' {
var items = "<option>Please Select</option>";
$.each(data, function (i, subtype) {
items += "<option value='" + subtype.Value + "'>" + subtype.Text + "</option>";
});
$("#SubTypes").html(items);
});
});
</script>
}
您可以使用$ .ajax來執行此操作,這樣可能更容易了解發生了什么
$(function () {
$("#Types").change(function () {
$.ajax({
type: "get", // can change to post easily
data: {typeId: $(this).val()}, // or this.value
url: "@Url.Action("SubTypeList", "RiskAssessment")" // use url helper here
}).done(function (data) {
var items = "<option>Please Select</option>";
$.each(data, function (i, subtype) {
items += "<option value='" + subtype.Value + "'>" + subtype.Text + "</option>";
});
$("#SubTypes").html(items);
});
});
});
在代碼中使用url helper是正確的方向,您只需要也包含參數即可。
$.getJSON(
"@Url.Action("SubTypeList", "RiskAssessment")",
{ typeId: $(this).val() })
.done(function (data) {
var items = "<option>Please Select</option>";
$.each(data, function (i, subtype) {
items += "<option value='" + subtype.Value + "'>" + subtype.Text + "</option>";
});
$("#SubTypes").html(items);
});
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