asp.net-mvc-4 - 发布后保留表单值(不是模型的一部分)

Question

我有一个 MVC4 页面，该页面有一个表单，其中包含用作搜索字段的复选框、单选按钮和文本框的集合。发布后，解析选择并使用新结果更新较低的结果网格。现在所有的表单值在返回时都会被清除，新的结果会显示在网格中——只有网格是模型的一部分。

我希望所有表单选择在发布后保留其值，以便用户可以查看(并更改)下一个帖子/搜索的选择。表单填充了 viewbags。

@using (Html.BeginForm("Index", "Home", FormMethod.Post, new { id = "searchform" }))
{
    @Html.ValidationSummary("Please correct the following errors")

<div style="float:left;">

    <div style="float:left;">
    <label>Name:</label>
    @Html.TextBox("name")
    </div>

    <div style="float:left; margin-left:15px">
    <label>Company:</label>
    @Html.TextBox("company")
    </div>

    <div style="float:left; margin-left:65px">
    <label>Date Range:</label>
    @Html.TextBox("dateStart", "", new { @class = "datefield", type = "date" })
    &nbsp;to&nbsp;
    @Html.TextBox("dateEnd", "", new { @class = "datefield", type = "date" })
    </div>

</div>

<div style="clear: both;">
    Match Any Categories? <input type="radio" name="categoryMatchAll" value="false" checked="checked" />&nbsp;&nbsp;&nbsp;
    Match All Categories?  <input type="radio" name="categoryMatchAll" value="true" /> 
</div>

<div style="float:left;">

    <div id="searchform-categories" style="float:left;">
        <div class="scroll_checkboxes">
            <label>Categories</label>
            <ul>
            @foreach (var x in ViewBag.Categories)
            {
                    <li>
                        <input type="checkbox" name="categories" value="@x.Id"/>

                        @x.Name

                    </li>
            }
            </ul>
        </div>
    </div>

    <div id="searchform-diversity" style="float:left; margin-left:30px">    
        <div class="search-selection" style="float:left;">
            <label>Minority Owned</label>
            <ul>
                @foreach (var x in ViewBag.Minorities)
                {
                    <li>
                        @Html.RadioButton("minorities", (String)x.Id.ToString())
                        @x.Name
                    </li>
                }
            </ul>
        </div>
        <div class="search-selection" style="float:left;">
            <label>Diversity Class</label>
            <ul>
            @foreach (var x in ViewBag.Classifications)
            {
                <li>
                    @Html.RadioButton("classifications", (String)x.Id.ToString())
                    @x.Name
                </li>
            }
        </ul>
        </div>    
    </div>  

</div>    

<div style="clear: both;">
    <input type="submit" value="Search Profiles" />
    <input type="submit" value="Reset" />
    </div>       
}

数据网格绑定(bind)到模型为

@model IEnumerable<VendorProfileIntranet.Models.VendorProfile>

<table id="VendorTable" width="100%" class="gradeA">
<thead>
    <tr>
    <th>
        @Html.DisplayNameFor(model => model.Name)
    </th>
    <th>
        @Html.DisplayNameFor(model => model.CompanyName)
    </th>
    <th>
        @Html.DisplayNameFor(model => model.City)
    </th>
    <th>
        @Html.DisplayNameFor(model => model.State)
    </th>
    <th>
        @Html.DisplayNameFor(model => model.DateCreated)
    </th>
    <th>Actions</th>
    </tr>
</thead>
<tbody>

@foreach (var item in Model)
{
<tr>
    <td class="list-field">
        @Html.DisplayFor(modelItem => item.Name)
    </td>
    <td class="list-field">
        @Html.DisplayFor(modelItem => item.CompanyName)
    </td>
    <td class="list-field">
        @Html.DisplayFor(modelItem => item.City)
    </td>
    <td>
        @Html.DisplayFor(modelItem => item.State)
    </td>
    <td class="list-field">
        @Html.DisplayFor(modelItem => item.DateCreated)
    </td>
    <td class="list-field">
        @Html.ActionLink("Edit", "Edit", new { id = item.ProfileID }) |
        @Html.ActionLink("View", "View", new { id = item.ProfileID }) |
        @Html.ActionLink("Delete", "Delete", new { id = item.ProfileID }, new { onclick = " return DeleteConfirm()" })
    </td>
</tr>

}

</tbody>
<tfoot>
    <tr>
        <td>&nbsp;</td>
    </tr>
</tfoot>

Answer 1

如果您在 mvc 中使用 html，请查看 here 中的解决方案 2 , value="@Request["txtNumber1"]"对我来说工作得很好，

<input type="text" id="txtNumber1" name="txtNumber1" value="@Request["txtNumber1"]"/>

希望对某人有所帮助。