我使用的是MVC3、C#、Razor。我有一个视图（Index.cshtml），其中包含对Partial（List.cs.html）的引用。页面上还有一个Ajax表单（Ajax。BeginForm…），它是列表的过滤器。我一直在使用Ajax表单的默认POST方法，一切都很好。然而，有一件事并不像我的客户所期望的那样奏效。当我筛选列表时，单击某个项目以查看其详细信息（Detail.cs.html），然后单击返回，它不会显示筛选的列表，而是返回到整个列表。因此，我想将我的表单方法更改为GET来解决这个问题（并使我能够将一个人直接链接到筛选列表）。我这样做，但它引入了一种新的反常现象。我过滤我的列表，然后选择一个项目作为详细信息，然后单击返回。现在我得到了我的过滤列表（根据需要），但我也得到了URL中的查询字符串，它会覆盖任何后续的过滤列表的尝试。我不确定是否需要手动清除查询字符串，或者是否需要完全采用新的模式。以下是相关代码：

---

索引.cshtml

    @using (Ajax.BeginForm(new AjaxOptions { UpdateTargetId = "resultslist", LoadingElementId="loadingResults", OnComplete = "initializePage", HttpMethod="Get" }))
{ 
    <div class="pane">Filter</div>
    <div>
        <div class="filterfield">
            <div class="field">@Html.TextBox("keywords", "")</div>
            <div class="fieldname">Keywords</div>
        </div>
        <div class="filterfield">
            <div class="field">@Html.DropDownList("type", Model.Types, "")</div>
            <div class="fieldname">Type</div>
        </div>
        <div class="filterfield">
            <div class="field">@Html.DropDownList("category", Model.Categories, "")</div>
            <div class="fieldname">Category</div>
        </div>
        <div class="filterfield">
            <div class="field">@Html.DropDownList("subcategory", Model.Subcategories, "")</div>
            <div class="fieldname">Subcategory</div>
        </div>
        <div class="filterfield">
            <div class="field">@Html.Editor("capability","AutocompleteSingle", new { Id = "capability", Url = "/dp/api/pages/GetCapabilities" })</div>
            <div class="fieldname">Capability</div>
        </div>
        <input id="filterButton" type="submit" value="Filter" />
        <input type="button" onclick="$('form').clearForm();filterButton.click();" value="Clear" />
        <div style="clear:both;"></div>
    </div>
}
...
<div id="loadingResults" class="loading">
    loading...
</div>
<div id="resultslist">
    @Html.Partial("List", Model.Pages)
    @if(!ViewBag.Cached) {
        @:Building environments. Please wait. This may take a while.
    }
</div>

---

PagesController.cs-索引操作

        public ActionResult Index(string keywords, string category, string subcategory, string capability)
    {
        var pages = (CurrentEnvironment != null ? CurrentEnvironment.Pages.AsEnumerable() : new List<CustomPage>());
        //apply filters if they exist
        if (!string.IsNullOrEmpty(keywords))
            pages = pages.Where(
                page => page.Name.ToLower().Contains(keywords.ToLower()) ||
                    page.Category.ToLower().Contains(keywords.ToLower()) ||
                    page.Subcategory.ToLower().Contains(keywords.ToLower()) ||
                    page.Capabilities.Any(name => name.ToLower().Contains(keywords.ToLower())) ||
                    page.File.FullName.ToLower().Contains(keywords.ToLower()) ||
                    page.RevisionHistory.ToLower().Contains(keywords.ToLower()) ||
                    page.Summary.ToLower().Contains(keywords.ToLower())
            );
        if (!string.IsNullOrEmpty(category)) pages = pages.Where(p => p.Capabilities.Count > 0 && p.Category == category);
        if (!string.IsNullOrEmpty(subcategory)) pages = pages.Where(p => p.Capabilities.Count > 0 && p.Subcategory == subcategory);
        if (!string.IsNullOrEmpty(capability)) pages = pages.Where(p => p.Capabilities.Count > 0 && p.Capabilities.Any(c => c.ToLower().Contains(capability.ToLower())));
        //build a view model
        var result = new dp.ViewModels.PagesViewModel
        {
            Pages = pages.ToList(),
            Types = pages.Select(p => p.Type).Where(t => !string.IsNullOrWhiteSpace(t)).Distinct().OrderBy(t => t).ToSelectItemList(t => t, t => t),
            Categories = pages.Select(p => p.Category).Where(c => !string.IsNullOrWhiteSpace(c)).Distinct().OrderBy(c => c).ToSelectItemList(c => c, c => c),
            Subcategories = pages.Select(p => p.Subcategory).Where(s => !string.IsNullOrWhiteSpace(s)).Distinct().OrderBy(c => c).ToSelectItemList(s => s, s => s)
        };
        if (!Request.IsAjaxRequest())
            return View(result);
        else
            return PartialView("List", result.Pages);
    }

提前谢谢。