我有一个车牌下拉列表,其中最后一项是“新车牌”。默认情况下,表单不会显示新的车牌表单字段(新车牌的文本框,以及车牌所在州/省的下拉列表)。
我将如何根据“新车牌”的选择显示表格?
到目前为止,我已经创建了一个局部视图:
<%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<Namespace.ViewModels.ProfileMemberViewModel>" %>
<table cellspacing="2" cellpadding="2" width="100%" border="0" align="left">
<tr>
<td>
<%=Html.LabelFor(model => model.NewLicensePlate.LicensePlate, new { @class = "inputLabel" })%>
</td>
<td>
<%=Html.TextBoxFor(model => model.NewLicensePlate.LicensePlate, new { @class = "inputField" })%>
</td>
</tr>
<tr>
<td>
<%=Html.LabelFor(model => model.NewLicensePlate.PlateState, new { @class = "inputLabel" })%>
</td>
<td>
<%=Html.DropDownListFor(model => model.NewLicensePlate.PlateState, Model.NewLicensePlate.PlateStates, new { @class = "inputField" })%>
</td>
</tr>
父表格:
<%@ Page Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<Paysite.Providers.ViewModels.ProfileMemberViewModel>" %>
<% using (Html.BeginForm("Confirm", "Profile", FormMethod.Post, new { @id = "Profile-form" }))
{%>
...
<tr>
<td>
<%=Html.LabelFor(model => model.Member.LicensePlate, new { @class = "inputLabel" })%>
<br />
<br />
<span class="small">(To add, select "New License Plate")</span>
</td>
<td>
<%=Html.DropDownListFor(model => model.Member.LicensePlate, Model.Member.LicensePlates, new { @class = "inputField" })%>
</td>
</tr>
</table>
<div id="NewLicensePlate">
</div>
...
<%
} %>
父窗体中的 jQuery:
$("#Member_LicensePlate").change(function () {
var selectedPlate = $("#Member_LicensePlate").val();
if (selectedPlate == "New License Plate") {
$("#NewLicensePlate").load('<%= Url.Action("NewLicensePlate") %>');
} else {
$('#NewLicensePlate').empty();
}
});
视图模型:
public class ProfileMemberViewModel
{
public ExistingMemberViewModel Member { get; set; }
public NewLicensePlateViewModel NewLicensePlate { get; set; }
}
public class NewLicensePlateViewModel
{
[Display(Name = "License Plate")]
public string LicensePlate { get; set; }
[Display(Name = "Province/State")]
public string PlateState { get; set; }
public IEnumerable<SelectListItem> PlateStates { get; set; }
}
控制器动作:
public ActionResult NewLicensePlate()
{
var model = new ProfileMemberViewModel();
model.NewLicensePlate = new NewLicensePlateViewModel();
DataSet statesDataSet = _statesRepo.GetStates();
model.NewLicensePlate.PlateStates =
Enumerable.Select(statesDataSet.Tables[0].AsEnumerable(), x => new SelectListItem
{
Text = x.Field<string>("NAME"),
Value = x.Field<double>("ID").ToString()
});
return PartialView("NewLicensePlate", model);
}
当我从父级发布到时public ActionResult Confirm(ProfileMemberViewModel model)
,model.NewLicensePlate
没有得到绑定,它是null
. 我在这里做错了吗?我不确定这是否是最好的方法。