ASP.Net MVC3下拉列表和传递数据
本文关键字:数据 下拉列表 Net MVC3 ASP | 更新日期: 2023-09-27 18:03:40
我有这个控制器
public ActionResult Index()
{
IList<Partner> p = r.ListPartners();
ViewBag.Partners = new SelectList(p.AsEnumerable(), "PartnerID", "Name");
return View();
}
//
// POST: /Epub/
[HttpPost]
public ActionResult Index(IEnumerable<HttpPostedFileBase> fileUpload)
{
IList<Partner> p = r.ListPartners();
ViewBag.Partners = new SelectList(p.AsEnumerable(), "PartnerID", "Name");
int count = 0;
for (int i = 0; i < fileUpload.Count(); i++)
{
if (fileUpload.ElementAt(i) != null)
{
count++;
var file = fileUpload.ElementAt(i);
if (file.ContentLength > 0)
{
var fileName = Path.GetFileName(file.FileName);
// need to modify this for saving the files to the server
var path = Path.Combine(Server.MapPath("/App_Data/uploads"), Guid.NewGuid() + "-" + fileName);
file.SaveAs(path);
}
}
}
if (count == 0)
{
ModelState.AddModelError("", "You must upload at least one file!");
}
return View();
}
和相应的视图
@{
ViewBag.Title = "Index";
}
<h2>You are in the epub portal!</h2>
@Html.Partial("_Download")
@model IEnumerable<EpubsLibrary.Models.Partner>
@{
@Html.DropDownList("PartnerID", (IEnumerable<SelectListItem>)ViewBag.Partners)
}
我试图弄清楚如何将选定的PartnerID从视图传递回控制器。任何提示将不胜感激。我看了其他的帖子,但似乎不能找到一个解决方案,将有助于这一点。
提前感谢您的时间。
你可以创建一个接受FormCollection参数的ActionResult,以便从视图中的控件获取值,如下所示:
在视图中填充列表:
<% using (Html.BeginForm("MyActionButton", "Home")) { %>
<%= Html.DropDownList("MyList",(SelectList)ViewData["testItems"], "None") %>
<input type="submit" value="send" />
<% } %>
在服务器端获取值:
public ActionResult MyActionButton(FormCollection collection)
{
string value = collection["MyList"];
return View();
}