我得到的错误如下:
Child actions are not allowed to perform redirect actions.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.InvalidOperationException: Child actions are not allowed to perform redirect actions.
Source Error:
Line 1: <%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<RenderActionViewModel>" %>
Line 2: <%Html.RenderAction(Model.ActionName, Model.ControllerName, Model.RouteValues); %>
Line 3:
The Stack trace is:
[InvalidOperationException: Child actions are not allowed to perform redirect actions.]
System.Web.Mvc.RedirectResult.ExecuteResult(ControllerContext context) +700064
System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName) +727764
System.Web.Mvc.Controller.ExecuteCore() +159
System.Web.Mvc.ControllerBase.Execute(RequestContext requestContext) +334
System.Web.Mvc.<>c__DisplayClassb.<BeginProcessRequest>b__5() +62
System.Web.Mvc.Async.<>c__DisplayClass1.<MakeVoidDelegate>b__0() +15
System.Web.Mvc.<>c__DisplayClasse.<EndProcessRequest>b__d() +52
System.Web.Mvc.<>c__DisplayClass4.<Wrap>b__3() +15
System.Web.Mvc.ServerExecuteHttpHandlerWrapper.Wrap(Func`1 func) +41
System.Web.HttpServerUtility.ExecuteInternal(IHttpHandler handler, TextWriter writer, Boolean preserveForm, Boolean setPreviousPage, VirtualPath path, VirtualPath filePath, String physPath, Exception error, String queryStringOverride) +1411
[HttpException (0x80004005): Error executing child request for handler 'System.Web.Mvc.HttpHandlerUtil+ServerExecuteHttpHandlerAsyncWrapper'.]
System.Web.HttpServerUtility.ExecuteInternal(IHttpHandler handler, TextWriter writer, Boolean preserveForm, Boolean setPreviousPage, VirtualPath path, VirtualPath filePath, String physPath, Exception error, String queryStringOverride) +2819
System.Web.HttpServerUtility.Execute(IHttpHandler handler, TextWriter writer, Boolean preserveForm, Boolean setPreviousPage) +275
System.Web.HttpServerUtilityWrapper.Execute(IHttpHandler handler, TextWriter writer, Boolean preserveForm) +94
System.Web.Mvc.Html.ChildActionExtensions.ActionHelper(HtmlHelper htmlHelper, String actionName, String controllerName, RouteValueDictionary routeValues, TextWriter textWriter) +828
System.Web.Mvc.Html.ChildActionExtensions.RenderAction(HtmlHelper htmlHelper, String actionName, String controllerName, RouteValueDictionary routeValues) +56
ASP.views_shared_renderaction_ascx.__Render__control1(HtmlTextWriter __w, Control parameterContainer) in c:\TFS\PEEP\Src\Main\Hosts\BCA.PEEP.WebSite\Views\Shared\RenderAction.ascx:2
System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +131
System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +150
System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +12742749
System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +249
System.Web.UI.Page.Render(HtmlTextWriter writer) +40
System.Web.Mvc.ViewPage.Render(HtmlTextWriter writer) +65
System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +150
System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +12742749
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +5363
我在第2行获得错误的RenderAction.ascx代码是:
<%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<RenderActionViewModel>" %>
<%Html.RenderAction(Model.ActionName, Model.ControllerName, Model.RouteValues); %>
主计长的行动是:
public ViewResult DashboardQuicksearch(UserFilter userFilter, bool? showAdvancedSearchLink)
{
int resultCount;
List<KeyInfo<string>> makeList = quickSearchProvider.GetKeysForCriteriaKey(SearchType.Vehicle, "MakeName", userFilter, "null", false, null, out resultCount);
var selectListItems = new List<SelectListItem>();
foreach (KeyInfo<string> item in makeList)
{
selectListItems.Add(new SelectListItem() { Text = item.Key, Value = item.Key, Selected = false });
}
var viewModel = new DashboardQuicksearchViewModel() {
MakeList = (makeList.Count == 1)
? new SelectList(selectListItems, "Value", "Text", selectListItems[0].Value)
: new SelectList(selectListItems, "Value", "Text"),
VehicleCount = quickSearchProvider.GetLotItemCount("null", userFilter),
ShowAdvancedSearchLink = (showAdvancedSearchLink.HasValue ? showAdvancedSearchLink.Value : false)
};
return View(Constants.Views.Search.DashboardQuicksearch, viewModel);
}
我完全不知道怎么修好它。
编辑:
这是DashboardQuickSearch.ascx
<%@ Control Language="C#" Inherits="BCA.PEEP.Web.UI.ViewUserControlBase<DashboardQuicksearchViewModel>" %>
<%@ Import Namespace="BCA.PEEP.Web.Mvc" %>
<div class="Makes">
<%:(Model.MakeList.Count() == 1
? Html.DropDownList("Makes", Model.MakeList, new {@class="search-select"})
: Html.DropDownList("Makes", Model.MakeList, Html.Text("Name of search results filter:SelectMake"), new {@class="search-select"})
) %>
</div>
<div class="Models"><%:Html.DropDownList("Models", new List<SelectListItem>(), Html.Text("Name of search results filter:SelectModel"), new { disabled = "disabled", @class="search-select"})%></div>
<div class="ResultAndAction">
<span id="VehicleCount" class="VehicleCount"><span class="count-number"><%:Model.VehicleCount.ToString("N0") %></span> <%: Html.Text(Model.VehicleCount, "SearchResultsLabels:Vehicles singular", "SearchResultsLabels:Vehicles plural")%></span>
<div id="QSButtonDiv" class="Button">
<input id="QSButton" type="button" value ="<%:Html.Text("Text on buttons:search")%>" onclick="ExecuteSearch()" disabled="disabled" />
</div>
<% if (Model.ShowAdvancedSearchLink) { %>
<div id="ASButtonDiv" class="Button Hidden">
<input id="ASButton" type="button" value ="<%:Html.Text("Text on links:AdvancedSearch")%>" onclick="AdvancedSearch()" />
</div>
<% } %>
</div>
<script type="text/javascript">
$(document).ready(function () {
var vehiclesSingular = '<%=Html.Text("SearchResultsLabels:Vehicles singular")%>';
var vehiclesPlural = '<%=Html.Text("SearchResultsLabels:Vehicles plural")%>';
var makeCount = '<%=Model.MakeList.Count().ToString("N0") %>';
$('#Makes').change(function () { PopulateModels(); });
$('#Models').change(function () { UpdateVehicleCount(); });
$('#Makes').trigger('change');
function PopulateModels() {
var make = $('#Makes').val();
var $models = $('#Models');
$models.append('<option value="" selected>' + '<%=Html.Text("Name of search results filter:SelectModel") %>' + '</option>');
//alert("Populate Models - Make = '" + make + "'");
if (make == '') {
$models.attr('disabled', 'disabled');
$models.find('option').remove();
$models.append('<option value="" selected>' + '<%=Html.Text("Name of search results filter:SelectModel") %>' + '</option>');
$models.val('');
UpdateVehicleCount();
$('#QSButton').attr('disabled', 'disabled');
$('#QSButtonDiv').removeClass('PrimaryButton').addClass('Button');
return;
}
$.ajax({
type: 'GET',
url: '/Search/GetModelsForMake/',
data: { MakeName: make },
dataType: "json",
success: function (results) {
$models.find('option').remove();
$models.append('<option value="" selected>' + '<%=Html.Text("Labels for vehicle characteristics:All Models") %>' + '</option>');
$(results.Models).each(function (index, model) {
$models.append('<option value="' + model + '">' + model + '</option>');
});
DisplayVehicleCount(results.VehicleCount);
}
});
$models.removeAttr('disabled');
$('#QSButton').removeAttr('disabled', 'disabled');
$('#QSButtonDiv').removeClass('Button').addClass('PrimaryButton');
}
function UpdateVehicleCount() {
var make = $('#Makes').val();
var model = $('#Models').val();
$.ajax({
type: 'GET',
url: '/Search/GetMakeModelCount/',
data: { MakeName: make, ModelName: model },
dataType: "json",
success: function (result) {
DisplayVehicleCount(result);
}
});
}
function DisplayVehicleCount(vehicleCount) {
var vehicles = (vehicleCount == '1') ? vehiclesSingular : vehiclesPlural;
$('#VehicleCount').html('<span class="count-number">' + vehicleCount + '</span>' + ' ' + vehicles);
}
});
function ExecuteSearch() {
var make = $('#Makes').val();
var model = $('#Models').val();
if (make == '')
return;
window.location = '/Quicksearch/Vehicles?make=' + make + '&model=' + model;
}
function AdvancedSearch() {
<% if(AmbientContextHelper.CurrentBrand.Name.ToLower().Contains("alphabet"))
{ %>
window.location = '/SearchVehicle';
<% } else
{ %>
window.location = '/Quicksearch/Vehicles';
<% } %>
}
</script>
发布于 2014-07-29 13:18:22
这意味着:
此时,ASP.NET不知所措:它已经开始向客户端发送头和HTML,但现在突然被告知要收回所有这些,而是发送一个重定向状态代码。它显然无法做到这一点,所以它抛出了一个异常。
您必须弄清楚为什么要触发重定向,并确保不会发生这种情况。最有可能的原因(但绝不是唯一可能的原因)是一些定制的操作过滤器,这些过滤器还没有被设计为考虑到子操作。ASP.NET MVC操作筛选器通常检查执行操作是否作为子操作被调用,并避免在这种情况下重定向。
发布于 2015-09-14 09:55:52
您应该编写return PartialView(...)
,而不是为childAction编写return View(...)
。
发布于 2014-07-30 07:23:55
问题是ActionFilter类中的ControllerBase。(我第一次没看到)
就像
[ActionFilters.RequireHttps(RequireSecure = false)]
必须把它设为“真”
谢谢大家的回答。
注意:表示所有动作过滤器属性名称空间的基类: System.Web.Http.Filters程序集: System.Web.Http (在System.Web.Http.dll中)
https://stackoverflow.com/questions/25015833
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