public async Task<ActionResult> ManageUsers(ManageUsersViewModel model)
{
string message = string.Empty;
if (model != null)
{
if (!string.IsNullOrEmpty(model.SelectedUserName) && model.SelectedUserName != "-1")
{
var user = await UserManager.FindByIdAsync(model.SelectedUserName);
if (user == null)
{
throw new NullReferenceException("User");
}
IdentityUserClaim userRole = user.Claims.FirstOrDefault(a => a.ClaimType == ClaimTypes.Role);
Claim userRoleClaim = UserManager.GetClaims(user.Id).FirstOrDefault(a => a.Type == ClaimTypes.Role);
if (userRole != null)
{
IdentityResult removeResult = await UserManager.RemoveClaimAsync(user.Id, userRoleClaim);
if (removeResult.Succeeded)
{
IdentityResult claimResult = await UserManager.AddClaimAsync(user.Id, new Claim(ClaimTypes.Role, model.SelectedRoleName));
message = claimResult.Succeeded ? "RoleUpdateSuccess" : string.Format("Error: {0}", string.Join(",", claimResult.Errors));
}
else
{
message = string.Format("Error: {0}", string.Join(",", removeResult.Errors));
}
}
else if (!string.IsNullOrEmpty(model.SelectedRoleName) && model.SelectedRoleName != "-1")
{
IdentityResult claimResult = await UserManager.AddClaimAsync(user.Id, new Claim(ClaimTypes.Role, model.SelectedRoleName));
message = claimResult.Succeeded ? "AddRoleSuccess" : string.Format("Error: {0}", string.Join(",", claimResult.Errors));
}
else
{
message = "UserNameOrRoleNotSelected";
}
}
}
else
{
throw new ArgumentNullException("Model");
}
return RedirectToAction("ManageUsers", new { Message = message });
}
public async Task<ActionResult> ManageUsers(string message)
{
ViewBag.StatusMessage = string.IsNullOrEmpty(message) ? string.Empty : message;
var user = await UserManager.FindByIdAsync(User.Identity.GetUserId());
if (user == null)
{
return View("Error");
}
using (var context = HttpContext.GetOwinContext().Get<ApplicationDbContext>())
{
List<ApplicationUser> userList = context.Users.ToList();
List<string> roles = GetRolesTypes();
IdentityUserClaim userRole = user.Claims.FirstOrDefault(a => a.ClaimType == ClaimTypes.Role);
ManageUsersViewModel model = new ManageUsersViewModel
{
UserNames = new List<SelectListItem>(),
AvailableRoles = new List<SelectListItem>(),
CurrentRoleName = userRole != null ? userRole.ClaimValue : "-1"
};
model.AvailableRoles.Add(new SelectListItem { Value = "-1", Text = "Select" });
model.UserNames.Add(new SelectListItem { Value = "-1", Text = "Select" });
model.AvailableRoles.AddRange(roles.Select(a => new SelectListItem { Value = a, Text = a }).ToList());
model.UserNames.AddRange(userList.Select(a => new SelectListItem { Value = a.Id, Text = a.Email }).ToList());
return View(model);
}
}