我有一个视图,其中模型具有项目集合。然后,我有了一个EditorFor模板,该模板负责为用户创建一个下拉列表,以便为集合中的每个项目选择有限数量的值之一:
@model Consultants.Models.ProgramSkill
<tr>
<td>@Model.Program.Name
</td>
<td>@Model.Program.Category
</td>
<td>
@Html.DropDownListFor( model => model.Level, new SelectList(new[] { 0, 1, 2, 3, 4, 5 }, Model.Level))
</td>
</tr>
但是我宁愿让单选按钮做同样的事情,在MVC 3中有可能吗?如果是这样,怎么办?
最佳答案
那将是自定义html助手的理想选择:
using System.Web.Mvc;
using System.Web.Mvc.Html;
using System.Text;
using System.Collections.Generic;
using System.Linq.Expressions;
using System;
public static class HtmlExtensions
{
public static MvcHtmlString RadioButtonListFor<TModel, TProperty>(this HtmlHelper<TModel> htmlHelper, Expression<Func<TModel, TProperty>> ex, IEnumerable<SelectListItem> values)
{
string name = ExpressionHelper.GetExpressionText(ex);
var sb = new StringBuilder();
int counter = 1;
foreach (var item in values)
{
sb.Append(htmlHelper.RadioButtonFor(ex, item.Value, new { id = name + counter.ToString()}));
var label = new TagBuilder("label");
label.SetInnerText(item.Text);
label.Attributes.Add("for", name + counter.ToString());
sb.Append(label.ToString());
counter++;
}
return MvcHtmlString.Create(sb.ToString());
}
}
模型:
public class MyViewModel
{
public IEnumerable<SelectListItem> Items { get; set; }
public string Level { get; set; }
}
控制器:
public class HomeController : Controller
{
public ActionResult Index()
{
var model = new MyViewModel
{
Level = "2",
Items = Enumerable.Range(1, 5).Select(x => new SelectListItem
{
Value = x.ToString(),
Text = "item " + x
})
};
return View(model);
}
}
和一个视图:
@model AppName.Models.MyViewModel
@using (Html.BeginForm())
{
@Html.RadioButtonListFor(x => x.Level, Model.Items)
<input type="submit" value="OK" />
}
关于asp.net - 在MVC 3应用程序中使用单选按钮代替dropdownlist吗?,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/5435748/