读取视图中声明的值

Question

我在帐户控制器中添加了自定义索赔。当用户登录到系统时，登录数据将被添加到索赔中。

下面是代码，

public void SignInUser(string username, string userRole, string userid, bool isPersistent, string UserLevel,string AdminPannel, 
string MasterPannel, string Add_Supplier, string Update_Supplier, string Add_Employee, string Update_Employee,string View_PenReq ,
string View_ServReq,string View_ReqHis, string View_Inspect, string Authriz_Req, string Sus_CashPay, string Fin_Report)
{
// Initialization.    
var claims = new List<Claim>();
try
{
// Setting    
claims.Add(new Claim(ClaimTypes.Name, username));
claims.Add(new Claim(ClaimTypes.Role, userRole));
claims.Add(new Claim("UserId", userid));
claims.Add(new Claim("UserLevel", UserLevel));
claims.Add(new Claim("AdminPannel", AdminPannel));
claims.Add(new Claim("MasterPannel", MasterPannel));
claims.Add(new Claim("Add_Supplier", Add_Supplier));
claims.Add(new Claim("Update_Supplier", Update_Supplier));
claims.Add(new Claim("Add_Employee", Add_Employee));
claims.Add(new Claim("Update_Employee", Update_Employee));
claims.Add(new Claim("View_PenReq", View_PenReq));
claims.Add(new Claim("View_ServReq", View_ServReq));
claims.Add(new Claim("View_ReqHis", View_ReqHis));
claims.Add(new Claim("View_Inspect", View_Inspect));
claims.Add(new Claim("Authriz_Req", Authriz_Req));
claims.Add(new Claim("Sus_CashPay", Sus_CashPay));
claims.Add(new Claim("Fin_Report", Fin_Report));
TempData["UserLvl"] = UserLevel;

var claimIdenties = new ClaimsIdentity(claims, DefaultAuthenticationTypes.ApplicationCookie);
var ctx = Request.GetOwinContext();
var authenticationManager = ctx.Authentication;
// Sign In.    
authenticationManager.SignIn(new AuthenticationProperties() { IsPersistent = isPersistent }, claimIdenties);
var identity = new ClaimsIdentity(claims, DefaultAuthenticationTypes.ApplicationCookie);

var claimsPrincipal = new ClaimsPrincipal(identity);
Thread.CurrentPrincipal = claimsPrincipal;
}
catch (Exception ex)
{
// Info    
throw ex;
}
}

但是在主视图中读取数据时我很挣扎。例如，如果Admin Panel的声明值为false，我想在HTML视图中隐藏Admin面板菜单。我试过了，但没有用。你能帮我一下吗?由于

@if (bool.Parse(((System.Security.Claims.ClaimsIdentity)User.Identity).FindFirst("AdminPannel").Value) != true)
{
<li class="nav-header">Master Forms</li>
<li class="nav-item">
<a href="@Url.Action("Index", "M_Company")" class="nav-link"</a>
<i class="nav-icon fas fa-table"></i><p>
Add Company</p>
</a>
</li>
}

Answer 1

您可以使用ViewBag将数据从控制器传递到视图，也检查null，希望下面的代码更改会有所帮助。声明值以字符串类型

返回

@{
var value = ((System.Security.Claims.ClaimsIdentity)User.Identity)?.FindFirst("AdminPannel")?.Value;
bool flag;
// if value is "true" or "false"
bool.TryParse(value ?? "false", out flag)

}
//now check condition with flag
if(flag)