我以前使用MVC应用程序添加了3个角色。现在我无法添加新角色。调试时,我可以看到新的角色Id,但角色名称为空。我该如何解决这个问题?
我现在有三个角色。用户、管理员、销售。现在我想添加帐户角色,但无法添加。
控制器
// POST: /Roles/Create
[HttpPost]
public ActionResult Create(FormCollection collection)
{
try
{
context.Roles.Add(new Microsoft.AspNet.Identity.EntityFramework.IdentityRole()
{
Name = collection["RoleName"]
});
context.SaveChanges();
ViewBag.ResultMessage = "Role created successfully !";
return RedirectToAction("Index");
}
catch
{
return View();
}
}
CSHTML
@model Microsoft.AspNet.Identity.EntityFramework.IdentityRole
<div class="container body-content">
@{
ViewBag.Title = "Create";
}
<h2>Create Role</h2>
@Html.ActionLink("List Roles", "Index") | @Html.ActionLink("Manage User Role", "ManageUserRoles")
<hr />
@using (Html.BeginForm())
{
@Html.AntiForgeryToken()
@Html.ValidationSummary(true)
<p>
<div class="form-group">
@Html.LabelFor(model => model.Name, htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10">
@Html.EditorFor(model => model.Name, new { @class = "form-control" })
@Html.ValidationMessageFor(model => model.Name)
</div>
</div>
</p>
<br />
<div class="form-group">
<div class="col-md-offset-2 col-md-10">
<input type="submit" value="Create" class="btn btn-primary" />
</div>
</div>
}
</div>
您应该只在视图中使用viewModels,但由于您现在正在使用视图和对象,您应该调整控制器以使用mvc角色管理器(更容易):
// POST: /Roles/Create
[HttpPost]
public ActionResult Create(IdentityRole role)
{
try
{
var roleManager = new RoleManager<IdentityRole>(new RoleStore<IdentityRole>(new ApplicationDbContext()));
roleManager.Create(role)
context.SaveChanges();
ViewBag.ResultMessage = "Role created successfully !";
return RedirectToAction("Index");
}
catch
{
return View();
}
}