我需要显示一个复选框列表,可以检查多个复选框.
当用户点击提交时,这些复选框的值需要进入viewmodel中的属性…这是我到目前为止所得到的…
public class RegisterModel
{
public List<string> Roles { get; set; }
public List<RoleModel> SelectedRoles { get; set; }
}
public class RoleModel
{
public string RoleName { get; set; }
}
在视图中我试图这样做……
@foreach (var role in Model.Roles)
{
@Html.CheckBoxFor(m => m.SelectedRoles,role.RoleName)@role.RoleName
}
我收到以下错误：
CS0029: Cannot implicitly convert type 'System.Collections.Generic.List<string>' to 'bool'
有人能告诉我我做错了什么吗？
解决方法
简单：调整视图模型以匹配您的视图要求(显示某些角色的复选框列表),使用编辑器模板并避免在视图中编写循环.
所以：
查看型号：
public class RegisterModel
{
public List<RoleModel> Roles { get; set; }
}
public class RoleModel
{
public string RoleName { get; set; }
public bool Selected { get; set; }
}
控制器：
public class HomeController : Controller
{
public ActionResult Index()
{
var model = new RegisterModel
{
Roles = new[]
{
new RoleModel { RoleName = "administrator" },new RoleModel { RoleName = "developer" },new RoleModel { RoleName = "janitor :-)" },}.ToList()
};
return View(model);
}
[HttpPost]
public ActionResult Index(RegisterModel model)
{
// at this stage the model will contain all the
// information you need
return View(model);
}
}
查看(〜/ Views / Home / Index.cshtml)：
@model RegisterModel
@using (Html.BeginForm())
{
@Html.EditorFor(x => x.Roles)
<button type="submit">OK</button>
}
编辑模板(〜/ Views / Home / EditorTemplates / RoleModel.cshtml)：
@model RoleModel
<div>
@Html.HiddenFor(x => x.RoleName)
@Html.CheckBoxFor(x => x.Selected)
@Html.LabelFor(x => x.Selected,Model.RoleName)
</div>
