ASP.Net MVC3 DROPDOWNLIST和传递数据 [英] ASP.Net MVC3 Dropdownlist and passing data
本文介绍了ASP.Net MVC3 DROPDOWNLIST和传递数据的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
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)
}
我试图找出如何选择PARTNERID从视图到控制器通过。任何指针将AP preciated。我已经看过其他职位,但似乎无法找到一个解决方案,将帮助这一点。
I am trying to figure out how to pass the selected PartnerID from the view back to the controller. Any pointers would be appreciated. I have looked at other posts but cannot seem to locate a solution that will help with this.
在此先感谢您的时间。
Thanks in advance for your time.
推荐答案
您可以在您查看这样创建一个ActionResult接受的FormCollection参数,以便从控件获取值:
You can create an ActionResult accepting a FormCollection parameter in order to get the values from the controls in you view like this:
在View来填充列表:
In the View to Populate the List:
<% using (Html.BeginForm("MyActionButton", "Home")) { %>
<%= Html.DropDownList("MyList",(SelectList)ViewData["testItems"], "None") %>
<input type="submit" value="send" />
<% } %>
在服务器端来获取值:
public ActionResult MyActionButton(FormCollection collection)
{
string value = collection["MyList"];
return View();
}
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