1
我的视图模型是这样的:DropDownListFor总是返回null到控制器
public class ProjectViewModel
{
public ICollection<Project> Projects { get; set; }
}
我的控制器:
[HttpPost]
[Route("ChooseProject")]
public ActionResult ChooseProject(Project projects)
{
return RedirectToAction("Index", "Application");
}
最后我的看法:
@using ServicePortal.Web.Controllers
@model ServicePortal.Web.Models.ProjectViewModel
@{
Layout = "~/Views/Shared/_Layout.cshtml";
ViewBag.Title = "Choose project";
}
<div class="pure-form pure-form-aligned">
@using (Html.BeginForm("ChooseProject", "Login", FormMethod.Post))
{
@Html.AntiForgeryToken()
<div class="innerForm formgroup">
@Html.ValidationSummary(true, "", new { @class = "" })
@Html.DropDownListFor((model => model.Projects), new SelectList(Model.Projects,"ProjectKey", "ProjectName"))
<div class="row">
<button type="submit" class="button pull-right">Go on</button>,
</div>
</div>
}
</div>
的下拉列表填充了正确的值,但我想返回一个项目或带有ProjectKey的字符串到控制器。但是,当我提交表单并检查控制器中参数的值时,它始终为空,无论是在尝试返回项目还是尝试使用字符串时。我没有得到任何错误。我究竟做错了什么?