Trying to get Roles to populate a checkboxlist

Question

hi i am Trying to get Roles to populate a checkboxlist based on tutorial (https://weblogs.asp.net/scottgu/Recipe_3A00_-Implementing-Role_2D00_Based-Security-with-ASPNET-20-using-Windows-Authentication-and-SQL-Server)

but using Asp.net identity and c# 

 

My code: 

using CentretapCrmSystem.Models;

using Microsoft.AspNet.Identity;

using Microsoft.AspNet.Identity.EntityFramework;

using Microsoft.AspNet.Identity.Owin;

using System;

using System.Collections.Generic;

using System.Configuration;

using System.Data;

using System.Data.SqlClient;

using System.Linq;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

namespace CentretapCrmSystem.Pages

{

public partial class Removeroles : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

try

{

if (!User.IsInRole("Admin"))

{

Page.Visible = false;

Response.Redirect("accessdenied.aspx");

}

}

catch (HttpException)

{

}

}

public void PopulateRoleList(string userName)

{

RoleList.Items.Clear();

var Usermanager = Context.GetOwinContext().GetUserManager();

var RoleManager = new RoleManager(new RoleStore(new ApplicationDbContext()));

string[] roleNames = null;

string roleName = null;

var roles = RoleManager.Roles.ToList();

var d= roles.ToArray();

roleNames = d;

foreach (string roleName_loopVariable in roleNames)

{

roleName = roleName_loopVariable;

ListItem roleListItem = new ListItem();

roleListItem.Text = roleName;

roleListItem.Selected = Usermanager.IsInRole(userName, roleName);

RoleList.Items.Add(roleListItem);

}

}

public void UpdateRolesFromList()

{

foreach (ListItem roleListItem in RoleList.Items)

{

var Usermanager = Context.GetOwinContext().GetUserManager();

var RoleManager = new RoleManager(new RoleStore(new ApplicationDbContext()));

string roleName = roleListItem.Value;

string userName = DropDownList1.SelectedValue;

bool enableRole = roleListItem.Selected;

if ((enableRole == true) & (Usermanager.IsInRole(userName, roleName) == false))

{

Usermanager.AddToRole(userName, roleName);

}

else if ((enableRole == false) & (Usermanager.IsInRole(userName, roleName) == true))

{

Usermanager.RemoveFromRole(userName, roleName);

}

}

}

protected void LookupBtn_Click1(object sender, EventArgs e)

{

PopulateRoleList(DropDownList1.SelectedValue);

UpdateBtn.Visible = true;

}

public void UpdateBtn_Click(object sender, System.EventArgs e)

{

UpdateRolesFromList();

PopulateRoleList(DropDownList1.SelectedValue);

}

}

}

 the problem with using asp.identy is i can no use roles.getallroles() mathod which returns roles in string[]. can you help me what should i use for roleNames to make my code work

and how to get all roles in string arry[] in identity