在我研究过同样的问题时，我在这里看到了很多关于SO的问题，但是没有任何答案对我有帮助。
我已经尝试了每个答案解决方案，但没有一个有效。
所以我会逐一列出代码以及我尝试过的代码和位置。
首先，我的观点包括2个表格和部分视图，主要观点如下：
@using MyApplication.Select.Web.Helpers;
@model SearchUsersViewModel
@*Scripts*@
<script src="@Url.Content("~/Scripts/SearchEntity.js")" type="text/javascript"></script>
<script src="@Url.Content("~/Scripts/ManageUsers.js")" type="text/javascript"></script>
<script src="@Url.Content("~/Scripts/FormValidation.js")" type="text/javascript"></script>
<script type="text/javascript">
var theme = "admin"; //(lender, school, admin, or public)
var cssArray = ["ManageUsers.css", "ActionIcons.css"];
//Invoke loadCSS Method from CSSLoader.js
loadCSS(theme, cssArray);
//Set active tab from NavigationAdmin.js
setActiveNavTab("tab01"); //(tab01, tab02, tab03, tab04, tab05, tab06)
document.getElementById("AdminPageHeaderIMG").className = "HeaderImageManageUsers";
</script>
<div>
<table id="" cellpadding="0" cellspacing="0" border="0">
<tr style="height: 60px;">
<td>
<div class="PageHeaderDescriptionDiv">
Welcome to My Application
</div>
</td>
</tr>
<tr style="height: 1px;">
<td class="ContentDividerHoriz"></td>
</tr>
</table>
<table class="SearchUsersMainTable" cellpadding="0" cellspacing="0" border="0">
<tr>
<td>
<table cellpadding="0" cellspacing="0" border="0">
<tbody>
<tr>
<td>
<div class="SearchByUserDataTable">
@using (Html.BeginForm()) {
@Html.HiddenFor(model => model.SearchFilterType)
<table cellpadding="0" cellspacing="0" border="0">
<tr style="height: 30px;">
<td class="Header01">
User Search
</td>
</tr>
</table>
<table cellpadding="0" cellspacing="0" border="0">
<tr style="height: 20px;">
<td class="Header02">
Search By User Information
</td>
</tr>
</table>
<table cellpadding="0" cellspacing="0" border="0">
<tr style="height: 1px;">
<td class="ContentDividerHoriz_425"></td>
</tr>
</table>
<table id="searchByUserDataTable" cellpadding="0" cellspacing="0" border="0">
<tr style="height: 26px;">
<td class="leftColumn">
@Html.LabelFor(model => model.LastName)
</td>
<td class="rightColumn">
@Html.TextBoxFor(model => model.LastName, new { @class = "TextField_220" })
</td>
</tr>
<tr style="height: 26px;">
<td class="leftColumn">
@Html.LabelFor(model => model.Username)
</td>
<td class="rightColumn">
@Html.TextBoxFor(model => model.Username, new { @class = "TextField_220" })
</td>
</tr>
<tr style="height: 26px;">
<td class="leftColumn">
@Html.LabelFor(model => model.EmailAddress)
</td>
<td class="rightColumn">
@Html.TextBoxFor(model => model.EmailAddress, new { @class = "TextField_220" })
</td>
</tr>
</table>
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td id="filterByUserError" style="width: 300px; color: #ff0000;"></td>
<td align="right" style="width: 50px;">
<div>
<input id="filterByUserButton" type="submit" value="Search" />
</div>
</td>
<td style="width: 75px;"></td>
</tr>
</table>
}
</div>
</td>
<td style="width: 20px;"></td>
<td>
<div class="SearchByEntityDataTable">
@using (Html.BeginForm()) {
<table cellpadding="0" cellspacing="0" border="0">
<tr style="height: 28px;">
<td style="width: 425px;"></td>
</tr>
</table>
<table cellpadding="0" cellspacing="0" border="0">
<tr style="height: 20px;">
<td class="Header02">
Search By Entity Information
</td>
</tr>
</table>
<table cellpadding="0" cellspacing="0" border="0">
<tr style="height: 1px;">
<td class="ContentDividerHoriz_425"></td>
</tr>
</table>
<table id="searchByEntityDataTable" cellpadding="0" cellspacing="0" border="0">
<tr style="height: 26px;">
<td class="leftColumn">
@Html.LabelFor(model => model.EntityTypeID)
</td>
<td class="rightColumn">
@Html.DropDownListFor(model => model.EntityTypeID, new SelectList(Model.EntityTypes, "ID", "Name"), new { id = "entityTypeDropDown", @class = "DropDown_220" })
</td>
</tr>
<tr style="height: 26px;">
<td class="leftColumn">
@Html.LabelFor(model => model.SearchField, new { id = "entityTypeSearchLabel"})
</td>
<td class="rightColumn">
@Html.TextBoxFor(model => model.SearchField, new { id = "entityTypeSearchField", @class = "ui-widget TextField_220" })
</td>
</tr>
<tr style="height: 26px;">
<td class="leftColumn"></td>
<td class="rightColumn"></td>
</tr>
</table>
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td id="filterByEntityError" style="width: 300px; color: #ff0000;"></td>
<td align="right" style="width: 50px;">
<div>
<input id="filterByEntityButton" type="submit" value="Search" />
</div>
</td>
<td style="width: 75px;"></td>
</tr>
</table>
}
</div>
</td>
</tr>
</tbody>
</table>
<table cellpadding="0" cellspacing="0" border="0">
<tr style="height: 1px;">
<td class="ContentDividerHoriz"></td>
</tr>
</table>
<table cellpadding="0" cellspacing="0" border="0">
<tr style="height: 33px;">
<td style="width: 870px;">
<div class="TelerikGridHeaderBkgd">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="Header01" style="width: 150px; padding: 0px 0px 4px 5px;">
User Search Results
</td>
<td style="width: 10px;"></td>
<td style="width: 710px;">
<table cellpadding="0" cellspacing="0" border="0">
<tr style="height: 4px;">
<td style="width: 710px;"></td>
</tr>
</table>
<table>
<tr style="height: 20px;">
<td style="width: 188px;">
@*Resend Invitation*@
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="ActionIcon_ResendInvitationOn"></td>
<td style="padding-left: 5px; padding-right: 10px;">
<span class="SearchUsersLegendText">= Resend Invitation</span>
</td>
</tr>
</table>
</td>
<td style="width: 140px;">
@*Account Approved Status*@
<table width="140" cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="ActionIcon_AccountStatusLegend"></td>
<td style="padding-left: 5px; padding-right: 10px;">
<div class="SearchUsersLegendText">
<span>= </span>
<span style="color: #839f1b;">Active</span>
<span> / </span>
<span style="color: #d6161f;">Inactive</span>
</div>
</td>
</tr>
</table>
</td>
<td style="width: 162px;">
@*Account Lock Status*@
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="ActionIcon_UnlockAccountOn"></td>
<td style="padding-left: 5px; padding-right: 10px;">
<span class="SearchUsersLegendText">= Unlock Account</span>
</td>
</tr>
</table>
</td>
<td style="width: 170px;">
@*Reset Password*@
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="ActionIcon_ResetPasswordOn"></td>
<td style="padding-left: 5px; padding-right: 10px;">
<span class="SearchUsersLegendText">= Reset Password</span>
</td>
</tr>
</table>
</td>
<td style="width: 145px;">
@*Edit Account*@
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="ActionIcon_EditOn"></td>
<td style="padding-left: 5px; padding-right: 10px;">
<span class="SearchUsersLegendText">= Edit Account</span>
</td>
</tr>
</table>
</td>
</tr>
</table>
<table>
<tr style="height: 6px;">
<td style="width: 710px;"></td>
</tr>
</table>
</td>
</tr>
</table>
</div>
</td>
</tr>
<tr>
<td style="width: 870px;">
<div id="searchResults">
@Html.Partial("SearchResultsPartial", Model)
</div>
</td>
</tr>
</table>
</td>
</tr>
</table>
</div>
SearchResultsPartial在这里：
@model SearchUsersViewModel
@*Scripts*@
<link href="@Url.Content("~/Content/styles/TelerikCustom.css")" rel="stylesheet" type="text/css" />
@(Html.Telerik().Grid(Model.Users)
.Name("Users").TableHtmlAttributes(new { style = "width: 870px;"})
.Columns(columns => {
columns.Bound(o => o.EntityTypeName).Title("Entity Type");
columns.Bound(o => o.FirstName).Title("First Name");
columns.Bound(o => o.LastName).Title("Last Name");
columns.Bound(o => o.Username).Title("Username");
columns.Template(
@<text>
<a href="mailto:@item.EmailAddress" target="blank">@item.EmailAddress</a>
</text>).Title("Email").HtmlAttributes(new { style = "text-align: center" }).HeaderHtmlAttributes(new { style = "text-align: center" });
columns.Template(
@<text>
@{ if (@item.MembershipID == 0) {
<div class="ActionIcon_ResendInvitationOn" title="Resend Invitation" onclick="resendInvitation(@item.EntityID, @item.EntityTypeID, '@item.EmailAddress')"></div>
}
else {
if ((bool) item.IsApproved) {
<div class="ActionIcon_AccountStatusOn" title="Disable Account" onclick="setApprovalStatus('@item.Username', false)"></div>
}
else {
<div class="ActionIcon_AccountStatusOff" title="Enable Account" onclick="setApprovalStatus('@item.Username', true)"></div>
}
if ((bool) item.IsLockedOut) {
<div class="ActionIcon_UnlockAccountOn" title="Unlock Account" onclick="unlockAccount('@item.Username')"></div>
}
else {
<div class="ActionIcon_ResetPasswordOn" title="Reset Password" onclick="resetPassword('@item.Username')"></div>
}
<div class="ActionIcon_EditOn" title="Edit User" onclick="location.href='@Url.Action("Edit", "Admin", new { id = item.MembershipID, username = item.Username })'"></div>
}
}
</text>).Title("Actions");
columns.Bound(o => o.RowNumber).Hidden(true);
columns.Bound(o => o.MembershipID).Hidden(true);
columns.Bound(o => o.EntityID).Hidden(true);
columns.Bound(o => o.EntityTypeID).Hidden(true);
})
)
<div>
Total Rows:
@{
if (!@Model.Users.Any()) {
@Html.Label("0")
}
else {
@Model.Users.First().TotalRows
}
}
</div>
任何一种形式都可以进行搜索，这是一种互斥搜索。按用户数据搜索或按实体数据搜索，但不能同时搜索两者。每个表单上的提交按钮都会触发自己运行ajax调用的javascript：
function filterByUserSearch() {
var lastName = document.getElementById("LastName");
var username = document.getElementById("Username");
var emailAddress = document.getElementById("EmailAddress");
var entityTypeID = document.getElementById("entityTypeDropDown");
var entityName = document.getElementById("entityTypeSearchField");
var searchFilterType = document.getElementById("SearchFilterType");
//alert("User Search");
entityTypeID.value = 0;
entityName.value = "";
searchFilterType.value = 0;
$.ajax({
url: "/Admin/Search/",
dataType: "json",
cache: false,
type: 'POST',
contentType: 'application/json; charset=utf-8',
data: { LastName: lastName.value, Username: username.value, EmailAddress: emailAddress.value, SearchFilterType: searchFilterType.value },
success: function (result) {
$('#resultSpan').html('');
if(result.Success) {
$('#searchResults').html(result.Data);
if (result.ResultMessage != '<li></li>') {
$('#resultSpan').append($("<ul id='successMsg' style='list-style: none;' />").append(result.ResultMessage)).addClass("AjaxSuccessText");
$('#successMsg').css("padding-left", "0");
showResultPopUpDiv("ajaxResultWrapperDiv", "Action was Successful!");
}
}
else {
$('#resultSpan').append($("<ul id='errorMsg' style='list-style: none;' />").append(result.ResultMessage)).addClass("AjaxErrorText");
$('#errorMsg').css("padding-left", "0");
showResultPopUpDiv("ajaxResultWrapperDiv", "Ooops! There was an Error");
}
}
});
return false;
}
被调用的控制器操作在这里：
[HttpPost]
public JsonResult Search(SearchUsersViewModel model) {
try {
if (model.SearchFilterType == SearchFilterType.ByUserData)
return SearchForUsersByUserData(model, string.Empty);
if (model.SearchFilterType == SearchFilterType.ByEntityData)
return SearchForUsersByEntityData(model, string.Empty);
}
catch (Exception ex) {
ModelState.AddModelError("", ModelStateErrorUtility.WrapResultMessageForList(ex.Message));
}
return Json(new { Success = false, ResultMessage = ModelStateErrorUtility.GetModelStateErrors(ModelState) }, "application/json", JsonRequestBehavior.AllowGet);
}
private JsonResult SearchForUsersByUserData(SearchUsersViewModel model, string resultMessage) {
if (model.LastName != null || model.Username != null || model.EmailAddress != null) {
var listOfMatchingUsers = SearchUserService.SearchByUserData(model.LastName, model.Username, model.EmailAddress);
return PrepareSearchResultsForPartialView(model, listOfMatchingUsers, resultMessage);
}
throw new ArgumentNullException("Last Name, Username or Email Address must be entered for search");
}
private JsonResult SearchForUsersByEntityData(SearchUsersViewModel model, string resultMessage) {
if ((model.EntityTypeID == 1) || (model.EntityTypeID > 0 && model.SearchField != null)) {
var listOfMatchingUsers = SearchUserService.SearchByEntityData(model.EntityTypeID, model.SearchField);
return PrepareSearchResultsForPartialView(model, listOfMatchingUsers, resultMessage);
}
throw new ArgumentNullException("Entity Type must be entered for search");
}
private JsonResult PrepareSearchResultsForPartialView(SearchUsersViewModel model, ICollection<SearchUserResultsDTO> list, string resultMessage) {
return Json(new { Success = true, ResultMessage = ModelStateErrorUtility.WrapResultMessageForList(resultMessage), Data = RenderRazorViewToString("SearchResultsPartial", PrepareSearchResultsForModel(list, model)) }, "application/json", JsonRequestBehavior.AllowGet);
}
private static SearchUsersViewModel PrepareSearchResultsForModel(ICollection<SearchUserResultsDTO> listOfMatchingUsers, SearchUsersViewModel model) {
if (listOfMatchingUsers.Count != 0) {
model.Users = listOfMatchingUsers.Select(item => new UserEditViewModel(item)).ToList();
}
return model;
}
private string RenderRazorViewToString(string viewName, object model) {
ViewData.Model = model;
using (var sw = new StringWriter()) {
var viewResult = ViewEngines.Engines.FindPartialView(ControllerContext, viewName);
var viewContext = new ViewContext(ControllerContext, viewResult.View, ViewData, TempData, sw);
viewResult.View.Render(viewContext, sw);
viewResult.ViewEngine.ReleaseView(ControllerContext, viewResult.View);
return sw.GetStringBuilder().ToString();
}
}
我尝试了什么：
将操作方法设置为JsonResult
没有在响应中指定的内容类型，ajax调用contentType：application / json;字符集= UTF-8
应用/ JSON;响应中指定的charset = utf-8，ajax调用中没有内容类型
此时我有4种方法中有3种效果很好，IE 8很糟糕。所以现在我改变了动作方法的结果。
将操作方法设置为ActionResult
没有在响应中指定的内容类型，ajax调用contentType：application / json;字符集= UTF-8
此时我认为在ajax调用本身中指定的contentType是BAD。
应用/ JSON;响应中指定的charset = utf-8，ajax调用中没有内容类型
我甚至将脚本文件JSON2.js添加到项目中并在视图中引用了脚本，这根本没有做任何事情。
这里'疯狂的部分，我有另一个控制器设置相同的方式，它构建完全相同的json，唯一的区别是调用ajax调用它的视图略有不同。这是Ajax方法：
function setApprovalStatus(username, isApproved) {
$.ajax({
url: "/ELMAdmin/SetApprovalStatus/",
dataType: "json",
cache: false,
type: 'POST',
data: { username: username, isApproved: isApproved },
success: function (result) {
showManageUsersSuccessError(result);
}
});
}
它调用相同的子例程来渲染网格，唯一的区别是返回的数据。所以我从局部视图中删除了所有文本，IE仍然试图下载该文件。我觉得我已经尝试了所有我知道的东西，现在需要一些额外的眼睛来帮助指出我希望是明显的东西。
答案 0 :(得分：1)
好的，在查看示例并测试后，您需要将此内容类型添加到您的ajax调用中。
$.ajax({
url: "/ELMAdmin/Search",
cache: false,
type: 'POST',
contentType: "application/x-www-form-urlencoded;charset=utf-8",
data: { LastName: lastName.value, Username: username.value, EmailAddress: emailAddress.value, SearchFilterType: searchFilterType.value },
success: function (result) {
showManageUsersSuccessError(result);
}
});
注意contentType是application/x-www-form-urlencoded;charset=utf-8。这应该解决IE8的任何问题。
此外，虽然它可能只是示例，但您希望在搜索按钮上的onclick方法中return false，否则它将返回true，然后再发帖。
//Search By User Info
searchByUserBtn.onclick = function (event) {
entityName.className = "FieldOk";
entityName.value = "";
entityName.setAttribute("disabled", "disabled");
entityTypeID.value = 0;
entityTypeID.className = "FieldOk";
entityErrorMsgField.innerHTML = "";
filterByUserValidation();
return false;
}
答案 1 :(得分：0)
即使这个问题已经过时了，我还是会添加一个建议，以防其他人使用ASP.NET MVC 3 or 4并遇到此问题。
根据我的经验，当IE尝试将Json响应作为文件下载时，您只需要在视图中添加对jquery.unobtrusive的引用即可。
例如：
@Scripts.Render("~/Scripts/jquery.unobtrusive-ajax.min.js")
一旦到位，IE将不再尝试从JsonResult控制器操作下载json响应。无需更改响应类型等。