如何根据mvc3 / razor调用JQUery Multi-select下拉列表中的结果?
答案 0 :(得分:6)
multiselect插件使用[]
表示法将选定的值发送到服务器。我们一如既往地编写视图模型:
public class MyViewModel
{
public IEnumerable<string> SelectedValues { get; set; }
public IEnumerable<SelectListItem> Items
{
get
{
return new[]
{
new SelectListItem { Value = "1", Text = "item 1" },
new SelectListItem { Value = "2", Text = "item 2" },
new SelectListItem { Value = "3", Text = "item 3" },
};
}
}
}
然后是控制器:
public class HomeController : Controller
{
public ActionResult Index()
{
return View(new MyViewModel());
}
[HttpPost]
public ActionResult Index(MyViewModel model)
{
return View(model);
}
}
相应的观点:
@model MyViewModel
<script src="@Url.Content("~/Scripts/jquery.multiSelect.js")" type="text/javascript"></script>
<script type="text/javascript">
$(function () {
$("#SelectedValues").multiSelect();
});
</script>
@using (Html.BeginForm())
{
@Html.ListBoxFor(x => x.SelectedValues, Model.Items)
<button type="submit">OK</button>
}
最后是一个与IEnumerable<string>
类型相关联的模型绑定器,它将与插件使用的[]
表示法一起使用:
public class MultiSelectModelBinder : DefaultModelBinder
{
public override object BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext)
{
var model = (MyViewModel)base.BindModel(controllerContext, bindingContext);
var value = bindingContext.ValueProvider.GetValue(bindingContext.ModelName + "[]");
if (value != null)
{
return value.RawValue;
}
return model;
}
}
最后一部分是在Application_Start
注册模型绑定器:
ModelBinders.Binders.Add(typeof(IEnumerable<string>), new MultiSelectModelBinder());
答案 1 :(得分:2)
请尝试此操作以获取所选值
public ActionResult Index(MyViewModel model, FormCollection collection)
{
string selectedValues=collection["SelectedValues[]"]; //here you get comma separated values
return View(model);
}
答案 2 :(得分:0)
实际上,您还可以通过在操作中添加参数来接收所选值。
例如,假设您有以下列表框:
//Controller GET
public ActionResult ManageUsers()
{
ViewBag.Users = new SelectList(repository.GetAllUsers(), "Id", "Email");
return View();
}
//View
@Html.ListBox(ViewBag.Users as SelectList, new { @id = "users" })
//Controller POST
[HttpPost]
public ActionResult ManageUsers(List<int> users)
{
//Manage all the selected users which will appear in the List.
return View()...
}
我相信你可以将数组作为类型而不是通用列表,但是我自己没有尝试过,但关键是将参数命名为与列表框的html元素id相同。