Question

我有一个带有下拉列表过滤器的索引视图。每当从下拉列表中选择新项目时，索引页面将显示基于groupid的数据。这是视图

@using (Html.BeginForm("index", "service"))
{
    <div class="row">
        <div class="navbar navbar-default">
            <div class="navbar-header" style="margin:10px 0px 5px 5px">
                <div class="col-lg-12">
                    <a id="btnSAdd" class="btn btn-info glyphicon glyphicon-plus" href="/AppName/Service/Create"> Create New </a>
                    <button type="submit" id="btnSSave" class="btn btn-info glyphicon glyphicon-floppy-save">  Save  </button>
                </div>
            </div>
            <div class="navbar-collapse collapse navbar-responsive-collapse" style="margin:10px 0px 5px 5px">
                <div class="input-group">
                    <span class="navbar" style="font-family:'Californian FB';font-weight:bold">Select a Menu:</span>
                        @Html.DropDownList("GroupID", new SelectList(ViewBag.TopMenuList, "GroupID", "GroupName"),
                            new { @class = "btn btn-info dropdown-toggle", @style = "border-color:grainsboro", @onchange = "window.location = 'service/index?groupid=' + this.value" })
                </div>
            </div>
        </div>
    </div>

    <div class="row">
        <div id="drag" class="panel-body">
            <table class="table table-hover" style="width:auto" id="sTable">
            <colgroup>
                <col width="30" />
                <col width="250" />
                <col width="250" />
                <col width="200" />
            </colgroup>
            <thead>
                <tr>
                    <th>&nbsp;</th>
                    <th>Parent Group</th>
                    <th>Service Name</th>
                    <th>Service Description</th>
                </tr>
            </thead>
            <tbody>
                @for (int i = 0; i < Model.Count; i++)
                {
                    <tr class="orderedrow">
                        <td class="rowhandler">
                            <div class="drag rowdip">@Html.HiddenFor(model => model[i].ServiceID)</div>
                        </td>
                        <td>@Html.DropDownListFor(model => model[i].GroupID, new SelectList(Model[i].ParentServiceGroupList, "GroupID", "GroupName", Model[i].GroupID))</td>
                        <td>@Html.EditorFor(model => model[i].ServiceName, new { htmlAttributes = new { @style = "width:250px" } })</td>
                        <td>@Html.EditorFor(model => model[i].ServiceDescription, new { htmlAttributes = new { @style = "width:250px" } })</td>
                    </tr>
                }
            </tbody>
            </table>
        </div><!--End Div drag-->
    </div><!--End of row-->
}

RouteConfig.cs

public static void RegisterRoutes(RouteCollection routes)
{
    routes.IgnoreRoute("{resource}.axd/{*pathInfo}");

    routes.MapRoute(
        name: "Default",
        url: "{controller}/{action}/{id}",
        defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }
    );
}

我遇到的问题是过滤器仅在第一次起作用

http://localhost/AppName/service/index?groupid=4

。第二次，似乎将我的网址添加为

http://localhost/AppName/service的 /服务 /索引？GROUPID = 5

我该如何解决这个问题？

由于

Answer 1

尝试更改此

@onchange = "window.location = 'service/index?groupid=' + this.value"

到这个

@onchange = "window.location = '/service/index?groupid=' + this.value"

MVC下拉列表过滤器onchange

1 个答案: